<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by MEBenson:
You're right - - you can upgrade using miles, but only if you're in a CO-owned seat. (in other words, if CO got the money for your ticket).</font>
Yes, and you could only upgrade
into the UC seats that CO purchased. If those (say, 5) seats were sold, and Virgin hadn't sold
any, you'd still be SOL.
Basically, until you actually get to the airport and check-in, you might as well be flying on CO. Virgin probably wouldn't even have any record of your reservation.