General help

I am trying to subscribe to an RSS feed of this forum using Thunderbird.

When I try to view the forum posts as RSS feeds, I see the Moodle login screen in Thunderbird. I am subscribed to the course and I login via Firefox Portable using WinXP (and I have Moodle cookies added to Firefox Portable), but still only see the Login screen in Thunderbird.

I also tried these instructions for adding cookies to Thunderbird:
http://kb.mozillazine.org/RSS_cookies_(Thunderbird)

but I cannot find cookies.txt in my Firefox Portable profile. Instead I have cookies.sqlite which I tried copying to my Thunderbird profile, but it didn't have the desired effect.

I might add that I subscribe already to 100's of feeds via Thunderbird and have never encountered this problem before.

Can anyone help?