it may be a long and painful road for you, my son. may da farce b wid u

i searched google for "nokia gprs linux" there are some links which you might read up on...

Linux GPRS/EDGE via Bluetooth HOWTO | HowtoForge - Linux Howtos and Tutorials

weBLOGic GPRS connection using Nokia E50 on GNU/Linux

but really looks like you have a steep learning curve ahead of you...

keep reading! and good luck!