CAN A NETWORK GURU CONFIGURE MY TMOBILE G1 4 ME USING MTN GPRS SETTINGS

IF ANYBODY CN FILLED THESE BELOW BESIDES WAT I HAVE DONE,I WILL BE VERY GRATEFUL.HELP ME PLS COS AM ABOUT FLASHING IT.
1)NAME:
2.APN:
3.PROXY:
4.PORT:
5.USERNAME:
6.PASSWORD:
7.SERVER:
8.MMSC:
9.MMS PROXY:
10.MMS PORT:
11.MCC:
12.MNC:
APN TYPE:
I GAVE
1)MTN GPRS
2)web.gprs.mtnnigeria.net
3)10.199.212.2
4)8080
5)web
6)web
7)mtn.com.ng
8)http//:10.199.212.8/servlets/mms
9)10.199.212.2
10)8080
11)621
12)30
13)mtn wap
I HAVE CONFIGURED AND I USED IT B4,I DON'T KNOW IT DOESN'T WANT TO WORK AGAIN.IT REFUSED TO CONFIGURE AFTER I DID THE FONE FACTORY SETTINGS.