.Map :: MoHAA Mapping

Hey.. I have a rather strange problem. I made maps for MOHAA in MoHRadiant, compiled and all, put into .pk3... Up until then, I'd had no problems playing these maps in Spearhead.
Then, I added a loading screen. Now, it says it can't find the appropriate shaders or tga files. Any ideas as to what I need to add, if anything?

Maybe its in a wrong dir?

Nope. If you're talking about the wrong directories inside the .pk3, if that was the case the map wouldn't work in MOHAA either, and it does. If you're talking about whether or not it's been copied from the /main to the /mainta folder, I've done that several times to no effect.