Vodacom GPRS settings driving me insane

I have one of these cameras that can take pics of wildlife or whatever.
Anyhow you can set it up either to send MMS to a cell phone and email or using GPRS to email.

I have loaded both data and voice funds on the sim and the MMS setup just works - sends pictures to both a phone and email, no problem, but if I try and go to GPRS settings nothing works.

ANY ADVICE ??

For APN I use: internet
Account and password I leave blank

I have setup a vodacom email account to see if that would work, but not winning
anyhow
smtp server: smtp.vodacom.co.za or smtp.vodamail.co.za
port: 25
sender email, I use the vodacom mailbox i set up 076xxxxxxxxx@vodamail.co.za and then my password.

it should just work - but it doesn't, so what is wrong?
The sim is fine, it sends and receives mms so thats all good, it just doesnt work on my gprs settings:confused: