1 | Jailbreak iPhone
2 | iPhone Explorer
3 | Installous
Click edit and add this source http://cydia.hackulo.us
From there u can install Installous
After that download iPhone Explorer from here
Connect your iDevice to your computer and open iPhone Explorer
Go to Root | var | mobile | Documents | Installous | Downloads
Drag and Drop your .ipa file
Open Installous from iPhone and clik Downloads
Your file is there. Happy Installation :)
