A sign of things to come ?

[#1]

It CANNOT be the wire from the house to the pole, unless after you do the PPP drop and reconnect the BT speedtester reports a much lower profile which I'm guessing it won't as I'm fairly certain you will have established a new PPP session as a result the testing you've done, but at least doing it again should ensure that it reports the correct value.
The test you posted shows the Profile as 77.44 which x1.033 = 79.999 in other words your sync speed it pretty much 80Mbps, which is exactly what I'd expect to see if the Cab is almost in your front garden.
Adam's post suggests it's not a Profiling issue at Plusnets end, so the likely probability is a problem on the DSLAM in the Cab, which probably does need the engineer to resolve as remote prodding has had no noticeable effect.
If you need any guidance on ensuring you PPPoE Dialler connection direct from computer to modem is set up correctly see http://community.plus.net/library/broadband/fibre-help-how-to-set-up-a-pppoe-dialler-in-vistawindows... or http://community.plus.net/library/broadband/fibre-help-setting-up-a-pppoe-dialler-for-windows-xp/ depending on your OS.

[#2]

I have only tried with the laptop as was the easiest option, didn't want to dismantle the pc from one room to another, yet the Pc was tried via Ethernet directly to the router. The Openreach Modem is in the Kitchen next to the master socket the router is in the front room (through adjoining wall).
Will have to investigate the make of the adapter tomorrow, but am presuming its not cheap and nasty given its Alienware.

[#3]

The PC spec. should state what the spec. of the Ethernet port should be.

[#4]

Quote from: Anotherone

It CANNOT be the wire from the house to the pole, unless after you do the PPP drop and reconnect the BT speedtester reports a much lower profile which I'm guessing it won't as I'm fairly certain you will have established a new PPP session as a result the testing you've done, but at least doing it again should ensure that it reports the correct value. The test you posted shows the Profile as 77.44 which x1.033 = 79.999 in other words your sync speed it pretty much 80Mbps, which is exactly what I'd expect to see if the Cab is almost in your front garden. Adam's post suggests it's not a Profiling issue at Plusnets end, so the likely probability is a problem on the DSLAM in the Cab, which probably does need the engineer to resolve as remote prodding has had no noticeable effect. If you need any guidance on ensuring you PPPoE Dialler connection direct from computer to modem is set up correctly see http://community.plus.net/library/broadband/fibre-help-how-to-set-up-a-pppoe-dialler-in-vistawindows... or http://community.plus.net/library/broadband/fibre-help-setting-up-a-pppoe-dialler-for-windows-xp/ depending on your OS.

Thanks @Anotherone  Plusnet support talked me through setting up the PPPoE dialer over the phone on Saturday morning so im sure its ok, I am positive its nothing to do with any equipment my end as the tests were done directly from the master socket where the bt line enters my house, I think im just going to wait to see what the Engineer says on Friday as I am sure Plusnet would not be sending him out just for the sake of it.

[#5]

It may even be a fault in the Modem, he should certainly be trying another one if his tests show no problem at the DSLAM.

[#6]

Quote from: Anotherone

The PC spec. should state what the spec. of the Ethernet port should be.

I realise that, but as stated in an earlier post I am at work at the moment and out tonight so wont get a chance to check anything until tomorrow evening, I ve checked the Alienware site which doesnt give the spec, it just states (1x) RJ-45 Gigabit Ethernet

[#7]

Getting worse Im afraid !
Download speed achieved during the test was - 21.44 Mbps
For your connection, the acceptable range of speeds is 16 Mbps-77.44 Mbps .
Additional Information:
IP Profile for your line is - 77.44 Mbps
Upload speed achieved during the test was - 13.57Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps
Is it me or is the profile reducing gradually also ?

[#8]

Your BT IP profile is unchanged - 77.44 . If you have logged into the Router and Disconnected the PPP session, waited 30 seconds and clicked Connect to establish a new session and waited 10 minutes before running the Diagnostic part of the test if you've just run one (you can run the first part immmediately if you want) and the Profile is still 77.44 then that should prove it's not the line.

[#9]

Let us know how the engineer visit goes today for you.

[#10]

Something not quite right going on here ????     Just home from work waiting for BT engineer to arrive:
Low and behold.
Download speed achieved during the test was - 71.3 Mbps
For your connection, the acceptable range of speedsis 16 Mbps-77.44 Mbps .
Additional Information:
IP Profile for your line is - 77.44 Mbps
Upload speed achieved during the test was - 15.62Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps

And hour later

Download speed achieved during the test was - 43.44 Mbps
For your connection, the acceptable range of speeds is 16 Mbps-77.44 Mbps .
Additional Information:
IP Profile for your line is - 77.44 Mbps
Upload speed achieved during the test was - 14.29Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps

[#11]

Update:
Bt engineer arrived at 2:30 and left at 5pm, rewired the connection in the cabinet as he said it wasn't done very well and apparently I'm the first and only person on fiber in the cabinet, did his tests and found an "RF" fault  (radio frequency not REIN) but said not to much to worry about, fitted a new openreach modem, spoke to various colleques over his mobile phone but still could not get it any better. Suggested they might need to do a lift and shift and he would close his job with the relevant notes.
Download speedachieved during the test was - 39.13 Mbps
For your connection, the acceptable range of speedsis 16 Mbps-77.44 Mbps .
Additional Information:
IP Profile for your line is - 77.44 Mbps
Upload speed achieved during the test was - 15.18Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps
Whilst he was here the tests varied between 20mb and 72mb being the highest. directly from the openreach modem not the router.
Where do I go from here ?

[#12]

Did you used to suffer any disconnections or IP profile issues when you were on the Be product? Was that an ADSL product? The reason I ask is that if is was a wiring problem I would have expected issues on ADSL not just VDSL.
I'm not familiar with Openreach diagnosing FTTC issues, do they look at stats in the modem? Do they run a speed test?
2.5 hours implies a fair amount of work, was anything else tried?

[#13]

They have a very clever piece of test equipoment called a JDSU.
Anyway, it does sound like a fault on the DSLAM at the Cab. The engineer probably closed his job because it needs a more specialised engineer than he was to do the job. If it doesn't get followed up automatically by Openreach, Plusnet will pursue it Simon.

[#14]

You have more faith than I 

[#15]

Download speedachieved during the test was - 20.09 Mbps
For your connection, the acceptable range of speedsis 16 Mbps-77.44 Mbps .
Additional Information:
IP Profile for your line is - 77.44 Mbps
Upload speed achieved during the test was - 10.65Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps

Ohh Plusnet, where is the communication ?, where is the customer service..... this was Friday the 17th..... 24 hour support ????
Ohh have I made a serious mistake....