I upsized the clock files for you. It only took me 10 minutes. The clock looks a lot better on the phone than it does in the image below. It's not crisp looking, but definitely passable, even by my high standards. It would be nice if it flipped, but unfortunately S2U2 clocks don't have that feature.
If you want more S2U2 themes go to the S2U2 customization thread over in the Software forum...
http://forum.ppcgeeks.com/showthread.php?t=28668
Check out the last 20 pages or so. That's where you'll find all the WVGA themes. I posted some there, including my Star Trek and Star Wars themes.