Wifi with Cisco Clean Access Issue

Hi,
I will try to describe my problem as fully as possible and hopefully someone can help me out. Please, i need wifi for finals.

I have a 13" MBP running 10.5.8
My wifi works fine everywhere except for my school.
The airport connects, has full "signal" and it seems to assign an ip. BUT when i open firefox or safari the redirect/authentication page that is supposed to open never does; instead i get "page not found" or its equivalent. So i can't login or access the internet obviously.
Here is the other part, there are about 40 or so macbooks in every class I have running leopard and snow leopard and no one else seems to have a problem.
IT couldn't figure anything out.(after hours of trying) But they did tell me they use Cisco Clean Access.
I believe my wifi settings are default.

I have perused apple support forums and here and no one seems to have a fix for this problem. THANK YOU!

 

yea, i'm going to try getting on the whitelist, but I doubt they'll do it.

i know, it is terrible.

i actually have the address for the authentication page and it still doesn't load.