Reinstall Question

[Careyoke]

History:

Purchased Microstudio V2.200 in May 2001
Purchased Upgrade V2.609 in January 2005
Computer crashed in May 2005
Reloaded ok because OS was only issue
Still having problems so bought new computer

I have original purchase email with Serial code
I have orginal upgrade purchase with registration code

I downloaded the upgrade again and am trying to install without original file as it seems to have overwritten it during upgrade and I cannot copy the program over to the new computer.

I tried email address from original plus Serial #
I tried new email from upgrade plus Serial #
I tried email address from original plus upgrade registration #
I tried new email from upgrade plus upgrade registration #

Do I have to purchase the whole thing again just to get it to install?
What else can I try?
The basic message is that I do not have the right registration information.