Which other applications are you having problems with on Windows 7?
Fences pro, deskscapes : weird behavior themselves and/or causing crash of explorer.exe + desktop resolution problems with bugs in windows 7 themes (i.e does not save the screensaver) and so on. When uninstalled, no problems anymore. Fences is only disabled (and i really miss it), not uninstalled.
DesktopX : None of a single desktop gadget ever worked. I don't use desktopx themes, it was my only utility.
I suspect Windowblinds to be incompatible with many of my bigfish games (very odd desktop behavior, blinking then game stops), unless I unload it or assign my games to work with aero disabled in compatibility mode (stop dwm.exe). But none problem found with Windows 7, i admit. I just want back the ability of changing explorer background colors, but i'm certainly not going to install WB6 on windows 7 for that 
After my many issues with IP, i did not even want to test MyColors or tweak 7, all a week-end thinking i was going to be bold on finding a fix for my icons had been enough, huhu !
L-E-O : i've experienced and noticed exactly the same issue in modified imageres.dll, but unlike you i was not able to rename and replace it by the original, so rebuilding the cache was totally useless. [C'est très exactement le probleme, sauf que j'ai même pas osé entreprendre une traduction laborieuse ^^]