Why Wont Ultrasn0w Work. “could Not Activate Cellular Data” Message….ultrasnow Is Hidden?

I JUST WANNA USE MY IPHONE!!!
-is cydia supposed to be version .93 not 1.2.5 or something like that for me to unlock my iphone?
-i have a iphone 3gs with a modern firmware of 5.16.05 and a version of 5.0.1.
-i have jailbroken it and installed cydia
-i typed in repo666.ultrasn0w.com…….musclenerd.c… sinfuliphonerepo.com(or whatever its called) and they all appear in my sources, but WHEN i downloaded them it gave me an error…It was like red and yellow at the bottom of the screen and there was a bunch of numbers and the word”error” AND THEN something popped up that said “could not activate cellular device”….plz how can i fix this??????????????
-i bought the jailbreaking software from automaticiphoneunlockers.com…..i still have the program on my desktop……they promised to jailbreak(which they did but i couldve done that anywhere) AND unlock it…. i cant seem to actually unlock my iphone.
-i want to use it on the simple mobile carrier…they said it would work on any GSM sim…im sure it does but i just cant figure it out.
-plz give me step by step instructions on how to solve my problems…
-if you do i will give you 5 stars and somehow give you money…i think paypal does that…or wire it…or send a check…i dont know like 10-20 dollars though..
-this iphone has just been sitting in my room for a while now and i wanna use it! i love the camera on it its so clear…so please help me…
Thank you if you do also or for trying