Send and recieve files Via FTP on GPRS connection

I have one wavecom GPRS modem and one sim card.
I need to send txt file from one computer with MS DOS 6.22 OS for another with winXp OS.
I read GPRS AT-Commands chapter , but i need to more informations like requrment (valid IP Address,ADSL Conection,…)
and i dont know more things about these.

May you give me some refrences about it?