Hi tinsmith,
Sorry I never used ACIS.
You may have noticed that this forum has gone to 'Archive' status and is no longer taking new registrations.
Various reasons for this, mainly just a general lack of new posts being made (apart from spam).
I think it's now best just to regard this forum as a reference source, and to ask questions elsewhere.
This one is a good active forum for AutoCAD, Revit, Solidworks, and other CAD systems, you will find a lot of the old members from here still posting there often with the same username:
http://www.cadtutor.net/forum/forum.php
If you search for ACIS over there you will find quite a few threads.
Here's just one about converting/importing .stp to Acad and Revit (answered by old friend Cad64 who is still active over there).
http://www.cadtutor.net/forum/showth...t-.stp-to-.sat