BlackBerry Curve 8330
Modem
You can look at RIMs site, they use to tell you the phones that has an internal tether modem.
I am firewalled at work and cant check, but I am wondering this too....
does it have the tether modem.
IF IT DOES NOT
You can allways go to Sharkmodem.com and use their BB software to set up an iternal proxy if you dont know how.