send image pic or file using GSM/GPRS kit

Hi All,

I am using Gsm/GPRs application kit with SA-GL Quand band modem (enfora made).
Sim card is activated and GRPS service is enabled. I can able to send and receive SMS over GPRS connection. But in my end application i need to send image from modem to mobile phone. This is my main problem. How to send image or file using GSM/GPRS application kit. How mobile phone with GPRS service are downloading data from internet. How I can implement this using GSM/GPRS application kit.