i had a similiar problem with JAMin. I was able to connect to wifi but nothing in IE. but...
- my meails worked
- msn worked
- mozilla worked
- anti-virus update worked
- and so on...
Hence, I concluded that there was some problem with IE. Hard Reset (restore to factory settings) the phone and very carefully setup the connections again. Now everything works.
So, I would suggest to first check if you can access network in
-msn
-email (pop)
-mozilla
-anti-virus update
But before anything, verify that you have got the IP. Its under Settings--Connections--Wireless LAN.
Are you sure your network is not encrypted and if so, have you entered the correct key.
Let me know the results and may be I can help you further.
Thanks
Sohaib