Oh!
Sounds like you haven't got the imagemod files.
They're used in lots of mods, so they're a separate download.
Hmm... it seems there isn't a note about that on the download page... I'll add one.
http://geocities.com/hohoho611ca/imagepack.html
You'll also need this:
comp_286.bmp
The mini came on the CD, but for some reason there was no protrait to go with it, and nobody noticed until lately.