Here is a batch script to help out with replacing uxtheme.dll:

Copy and paste the text below into notepad and save the file as rename.bat.  Then just execute the batch script to reanme the easily.

ren $dlldir$uxtheme.dll $dlldir$uxtheme.dll.bak

ren $dlldir$uxtheme.pat $dlldir$uxtheme.dll