Once you choose ACIS(.sat) from the save-as menu, a little button will appear below that says "Options...". Click that button and you can choose the ACIS version to save, all the way back to version 1.6
Welcome to the forums.
When you save your file to SAT, there's an export options button in the Save As dialog. When you click that, another dialog box appears where you can set the ACIS version.
AutoCAD 2000 used ACIS 4.0 and that came out in 1999, so you can generally figure out how far back you need to go to get the correct version.
Into what application is Ken importing the ACIS files?
Thank you to both of you guys Josh Brady and John Burril, both of your answers are correct. Honestly I didn't know we could change the version of the format being saved. I have saved a file and send it to my customer to see if it works and so far its good.
John Burril, Ken is using AutoQuoter, I believe, as an add on to his AutoCAD 2010. He mention the program was created by a different group and it works well with AutoCAD.
Again, thank you both gentlemen for your quick answers. I wish I could mark both as correct answers.