I'd like to see the ability to search through member upgrades. Any webmaster that gets multiple upgrades per day would know it's nearly impossible to find a member that has purchased something 5+ days ago. Either that, or have a link in their member edit page to link to the package they purchased.
On top of that, I'd like the ability to edit the upgrade. Sometimes I admire a member and feel that they deserve a little longer on their upgrade. Right now you can't edit that. It would be nice to manually edit some of these.