I hate to resurrect such an old thread with a necrobump, but does anyone still have this utility? All the download links are dead, and making minimaps by hand in noggit, then stitching them together with md5translate.trs is a real pain in the ass.
This tool appears to do all that work and make minimapping/worldbuilding a bit more fun. Granted, 4.x/5.x minimaps are a different beast entirely (no longer relying on md5's, but the original adt_x_y format), I'm only hoping to target 3.x clients at this point in time.