Ok, I have tried...
1. APN: blackberry.net
The result: Fetch error: Bad DNS Address
2. APN: wap.cingular
Username:
Password: CINGULAR1
The result: Fetch error: could not open tunnel-failed
3. APN: proxy
Username: (blank)
Password: (blank)
The result: Fetch error: could not open tunnel-failed
Please help...