Application Crash - EXC_CRASH (SIGABRT) - iOS 4.3 - three20

Question

I have included three20 library in my project. I am making use of the TTThumbsViewController. Everything was working great until i upgraded to Xcode 3.2.6 and iOS 4.3. The grid of photos appears fine, but as soon as i click on one the thumbs, the app crashes. I am certain that this is not a memory issue. It works fine on the simulator though. Here is the crash report :

Incident Identifier: 3C63956F-F718-468F-B113-116E457DEB4E
CrashReporter Key: 32180af33b999869f98369f8d85412b799a88fdb
Hardware Model: iPhone3,1
Process: MyApp [15071]
Path: /var/mobile/Applications/13C32157-F4CA-44BC-BB8F-D9A9FE9EAE38/MyApp.app/MyApp
Identifier: MyApp
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]

Date/Time: 2011-05-06 21:48:06.042 -0500
OS Version: iPhone OS 4.3 (8F190)
Report Version: 104

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0

Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x00011a1c __pthread_kill + 8
1 libsystem_c.dylib 0x000333b4 pthread_kill + 52
2 libsystem_c.dylib 0x0002bbf8 abort + 72
3 libstdc++.6.dylib 0x00044a64 __gnu_cxx::__verbose_terminate_handler() + 376
4 libobjc.A.dylib 0x0000606c _objc_terminate + 104
5 libstdc++.6.dylib 0x00042e36 _cxxabiv1::_terminate(void (*)()) + 46
6 libstdc++.6.dylib 0x00042e8a std::terminate() + 10
7 libstdc++.6.dylib 0x00042f5a __cxa_throw + 78
8 libobjc.A.dylib 0x00004c84 objc_exception_throw + 64
9 CoreFoundation 0x0009e48a +[NSException raise:format:arguments:] + 62
10 CoreFoundation 0x0009e4c4 +[NSException raise:format:] + 28
11 QuartzCore 0x00001616 CALayerSetPosition(CALayer*, CA::Vec2 const&, bool) + 134
12 QuartzCore 0x00001584 -[CALayer setPosition:] + 32
13 QuartzCore 0x000014d0 -[CALayer setFrame:] + 384
14 UIKit 0x0000544e -[UIView(Geometry) setFrame:] + 182
15 MyApp 0x00078366 -[TTPhotoView layoutSubviews] (TTPhotoView.m:221)
16 UIKit 0x000055f4 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 20
17 CoreFoundation 0x0000befc -[NSObject(NSObject) performSelector:withObject:] + 16
18 QuartzCore 0x00002bae -[CALayer layoutSublayers] + 114

Any ideas anyone ?

Thanks