The charging animation is not available on the Omnia. For some reason the charging data is drawn in a unique way from most other devices, causing that bug in the Omnia (it applies to other battery apps as well, but just S2U2). There are many clocks out there, none really 'animated' though, that would take a bit og GOF-work I think. there are clocks that look like what you want, they are static images that look like they will flip. In fact A_C included a set in the latest version He released today, I posted it over here:
http://forum.ppcgeeks.com/showthread.php?t=58863
For other clock sets, the best place to go is the customization thread...you will find many ideas + images to start out with. If you are looking for something specific you can't find, or just want something totally unique, let us know and we can see what can be done!!!
The customization thread can be found here:
http://forum.ppcgeeks.com/showthread.php?t=28668
P.S. Wolcome to the community....enjoy!!