Where the hell is SX3 on the FTP???

I recently upgraded from SX to 8.5 and REALLY need to get a few old projects into the new version.

I had switched form PC to Mac and no longer have the PC tower that had my SX on it.

I read all the stuff about how to go about saving the old files with the different extension, but I need to get SX3 on to my Mac. I followed the directions, and went to the FTP archive.

THERE IS NO SX3 IN THE ARCHIVE!!! I t stops at SX2.

Will SX2 do what I need? Everything I’ve been reading has said I need to used 3.

Super frustrating and colossal waste of time.