Any way to use Xcode 3 with iOS SDK 4.3?

I'm using Xcode 4 with iOS 4.3. Xcode 4 is very buggy, not to mention a lot of stuff changed. The changes that most bug me are the hot keys, which I cannot even find a way to customize them in a decent combination. I'd love to use Xcode 3 because it's stable and it does what I need. Is there anyway to use Xcode 3 with iOS 4.3?