[HOW-TO] - Install .ipa Files

1) STEP 1: Under Cydia, select "Manage"

2) STEP 2: Select "Sources"

3) STEP 3: Add source "apt.steffwiz.com". 

4) STEP 4: Find "Steffwiz's Sources"

5) STEP 5: Under category "123" Select "2.2 MobileInstallation patch"

6) STEP 6: Once you have installed the MobileInstallation Patch, you can download any .ipa files to your iTunes and sync to the iPhone. Voila!!