For install instruction to load any carrier 8330 OS on your BB:
1. Back up data on Desktop Manager under Back up/restore option
2. Back up your 3rd party apps. Instructions here--> http://forums.crackberry.com/f3/how-...cations-53201/
3. Disconnect your BB from Desktop Manager
4. Download desired OS to your PC
5. Install/run OS to PC
6. Delete vendor.xml file. It's located in c:\program files\common files\research in motion\apploader
7. Connect BB to Desktop Manager and it should prompt the upgrade. If not click app loader and that should initialize it.
8. Do not unplug BB during the process. It will take around 30-60 minutes to complete upgrade.