Windows Server 2003 is shipped default with the themes service disabled. Neowin made an article enabling these services and more you can view that here. A special thanks to vorte[x] of WiNBETA for creating a working patch for the RTM version of Windows Server 2003. Instructions for applying the patch are as follows:
- Browse to C:WindowsSystem32dllcache
- Rename uxtheme.dll to uxtheme.bak (this is your backup file)
- Browse up to System32, rename uxtheme.dll > uxtheme.bak
- Copy the patched uxtheme.dll to C:WindowsSystem32
Download: Uxtheme Auto Patch for Windows Server 2003 - thanks werejag
The autopatch is a point and click process rather than the manual steps shown above.