nah you're good. The clock gets messed up if you didn't have a flip clock first... so install sprint2flip.cab then reinstalll the theme or any flipclock you like and it will be resolved. You'll also want to move your slider over... slider file is 1e29e8e7_manila search a program cfc gui editor (chainfire's) It will allow you to extract the file from your phone, extract the png from the file so you can edit it in other software, then replace png in file and replace file in phone.. pretty slick!
Here is link to sprint2flip.cab
http://forum.ppcgeeks.com/attachment...2&d=1230078720
since you like to create themes you'll be wanting that editor! Editor here:
http://forum.xda-developers.com/showthread.php?t=470798