If you still need my codeblocks workspace and project files, I have found them and fixed them up a bit ( there were a lot of hard-coded paths which wouldn't have worked on your system unless your username is the same as mine
)
But those errors are from the "pre/post build steps" commands in each project's build properties. I just deleted them, to be honest.. means more work for me in finding the correct files, but I wasn't for recompiling Horde that many times to have needed to go hunting for them too much.
You'll also need to watch that if you've imported the Visual Studio solution, that you're actually compiling against the libraries that you're creating and not the VC8 ones ( check your linker settings to see which libraries you're compiling to ) ... I fixed this by editing the linker search directories to point to "Build/Horde3D Engine/Debug Win32" or "Release Win32" and compiling against the library that was being created there.
Although this WILL still work, if you're trying to debug anything, you'll not have any symbols to check against making the callstack completely useless
Strange that the MinGW with CodeBlocks actually seems slightly different to the Ogre one... as the reason it's taken me a while to reply is that I've been testing and cleaning things up a bit.