Ok so yesterday I jailbroke and unlocked my iphone 4 ios 5.1 with ultrasn0w fixer for 5.1 and along with that downloaded ultrasn0w. Yes I "just boot" it from the options from ultrasnow on my laptop...and supposedly after rebooting my iphone with thoes things downloaded plus location off it shld be unlocked and ready to work on another sim card network...

I tried sticking in my t-mobile sim card and it didn't work no service then it said invalid sim card..
Note I use this simcard right now on another phone so it is active...

What do I do to make my t-mobile sim card enabled on my iphone 4 ios5.1?

Please help