You have the Premium Cabin Upsell (PCU) which will net you extra PQM's and can be done at purchase or anytime before checkin if you are prompted. This will book into a business/first bucket.
Upgrade For Cash (UFC) is done at checkin (online, counter, lounge, gate) and will NOT give you the extra PQM's.
To make it easy to follow simply list:
what route
original fare bucket
price offered
PCU/UFC?
Where it was offered/accepted
Accept it or deny it?
For easy reference here are the 2012 & 2013 threads:
http://www.flyertalk.com/forum/unite...-upgrades.html
http://www.flyertalk.com/forum/unite...-upgrades.html