There should be a Post for you on the disk that the software cam with as I have read many times.
Have you tried the Download area on Mastercams Official Web Page??
You can also try the eMastercam Forum or wait for a more experienced individual to help you here. LOL that excludes me
http://www.mastercam.com/Support/Downloads/Default.aspx
http://www.emastercam.com/cgi-bin/ul...cgi?category=1