Wireless nonsense

[Bruizedapple]

Hi all - any advice you could give would be greatly received!

Recently tried to wep encrypt my wireless, it all went wrong. The modem is working, the belkin card is registering and I can access the router homepage but I can't access the interweb.

Have contacted AOL tech and they say its the wireless client, so uninstalled and re-installed it and nothing.

But on the router homepage if I click connect it keeps saying authentication failed!