I never had AMOS Pro, but I had Creator and 3D and AMOS Compiler back in my A1200 days. The only thing that didn't work was the object editor for 3D. I had to make 3D objects on my A1000.
IIRC, there was a patch to make Creator AGA compatible. I can't remember if it came from Mandarin as a free upgrade (I got some disks from them in the mail) or if I got the patch on a magazine disk. I have a feeling it was the latter.
EDIT: I just found CU Amiga Disk 54 with AMOS Compiler and AMOS 1.35 on it, which is labelled "A1200 compatible!" (on the Creator side of the label). That's probably the version I was using on my A1200. If you need AMOS The Creator see if you can get your hands on that coverdisk.
