trying to re download sony vegas 11. entered my serial number and i get a wrong product registration number message. my copy is legit. i had to wipe my drive and no longer have it physically. i made sure to write down the serial number and i even took pictures just in case something like this would happen. yes its an old version but it was MINE and it worked for me and i definitely dont want to spend 300 dollars or more on a new version that i dont even need. what do i do? thanx