Can't get jailbrake to work

[TBugie]

I've downloaded blackrain to 2G iphone but it stiil does not read my sim card from AT&T what am i doing wrong

 

[Moi un Mouton]

Here's a tutorial on what to do to jailbreak your phone (note - it is NOT an unlock):

http://www.iclarified.com/entry/index.php?enid=5527 (windows)
or
http://www.iclarified.com/entry/index.php?enid=5566 (mac)

Read it carefully and then follow it carefully step-by-step. Good luck.