If you are not part of COADE's USM (Update, Support and Maintanance), then I doubt you will not be able to successfully update to PV Elite 2010. You PV Elite 2009 may stop working if you install the said update. So before getting any reply from COADE moderator, dont install update on your system.
My Personal Suggestion would be in order to be in compliance with latest Codes and Standard, take USM of COADE. (Just Personal Suggestion)
Thanks.
Mukesh
www.theculminates.comM:+91-9428500192