TTStyleSheet with span class

I am making an app with Three20. I have a TTTableViewController that is the main catalog for other screens and a secont TTViewController connected with a tturl scheme.

Memory Leak & App Crash when going back to Album List

I'm using three20 to create image viewer. First i'm creating list of albums from the sql db and when user selects any album, its url string is passed to the this code that creates thums of available pics on network using XML Parser. everything works fine but when user goes back to the album list and selects another album. app crashes with 'Thread 1: Program received singal: "EXC+BAD_ACCESS" in main.m . plus XCode Product Analyze gives potential memory leak where i'm creating photoSource in the viewDidLoad. Here is the code

How to properly update Three20?

I've just update my version of Xcode to 4.2 - Xcode has given me a load of warnings from the Three20 source. - So I guess the version of Three20 I have must not be compatible with iOS 5?