Out of curiosity, I dug up my old G3 iBook (circa 2001) and the hard disk with my copy of Zbrush 2.03, and the original RedMonster from page one, opened just fine. I exported it as an .obj file, and that imports into ZB 4 just fine.
Remember, it’s not a .ztl now, it’s an .obj for importing.
So here it is, exactly as exported from Zbrush-2.
Let this thread live on! with Zbrush 4.
redmonster-obj-(ZB2).zip (289 KB)