Hi Paul which iOS you have 5.0.1 or which?
From this you can download your iOS and tools to unlock
http://www.jailbreaknation.com/jailb...d-with-redsn0w
Second thing i would recommend if you are Jailbroken iPhone is Instalous via this guide
http://www.iphonestuffs4u.com/how-to...ll-installous/
Plus second thing is AppSync which allow you install cracked app downloaded from torrents etc
Jura