Hi,
(wx2.8.8, mingw-3.4.5)
I'm glad you found your way to compile it.
Seeing your unsuccessfull try, I tried to use my project file. As you, I too failed 

 Believe me it was working at that time..
There are two differences/problems:
- Project file was for ANSI build
  - Compiler settings-#defines: Added wxUSE_UNICODE
  - Linker settings: Changed wxmsw28 to wxmsw28u, wxregex to wxregexu
- It seems cb misses to add (Search directories-Resource compiler) resource include directories to windres command. I removed minimal.rc from project.
ps. I'm not using other compilers now, so didn't check them.
--
Regards,
Hakki Dogusan