Check out the opening post here before you do anything:
[ROM]One small step for man one giant leap for --- Liberty 1.5 2/2/2011
THESE DOWNLOADS MIGHT ONLY WORK IF YOU ARE ON A COMPUTER
Liberty 1.5 for DX
Themes (Place in liberty\downloads folder, named as is and then install via toolbox)
Liberty Theme (Default)
Big DX Crystal
All themes installed fine on my device using the toolbox.
Forum Admins, feel free to move this where ever if you think it doesn't need it's own thread, but I figured this would be easier then someone seeing it as post #142 in the main thread.