Why are these forums using https?

[#1]

Here at work I am restricted to IE6, and I am unable to change the security settings. Consequently, whenever I change pages within the forums, I get a security warning about some page content not being secure, despite being sent over a secure connection. This becomes very tedious very quickly indeed.
When I access the forums from home, mainly using Firefox, this is not an issue.
It seems odd that a forum of this nature is using secure http - presumably this is historic. Is there any reason this can't be changed to just use normal http for the forums?
ETA: I also find I can't scroll up/down the forum pages using the arrow keys on my keyboard...

[#2]

Try removing the 's' from 'https' in the address line. They don't have to be accessed using the secure protocol.

[#3]

Quote from: spraxyt

Try removing the 's' from 'https' in the address line.

::redface::
I wonder how that happened...
ETA: I can also scroll with the arrow keys as well. (Further edit: typo)
<Quiet> Woo Hoo...</Quiet>