Comments

Chienworks wrote on 11/11/2010, 5:04 AM
http://www.sonycreativesoftware.com/upgrade/moviestudiopp?disp=1

Alternatively you could try calling customer service http://www.sonycreativesoftware.com/support/contactus.asp and they would probably switch your license for the price difference.
GregP wrote on 11/24/2010, 6:54 AM
FYI - contacted support via the site and they allowed me to upgrade for just the difference in cost.