Here's a copy of the ST emulator exactly as I have it on my Wiz, and the roms folder with the TOS image and Castle Master (to test it with) and a few instructions. Please let me know how you get on with it, hope it helps:
http://www.megaupload.com/?d=FRXGF0WF
http://www.megaupload.com/?d=FRXGF0WF