Did a search and could not find this question.

How do I find what SWU (PU503) posted to what flights?

Last month I had 5 SWU's in the bank (expire 6/29/11), went to use 1 today and they were all used up. I have been using them over the last month in combination with miles upgrades, but don't believe that I burned 5. Also, have been SWU standby on several flights that I didn't get upgraded on, want to make sure that they didn't post the SWU upgrade to a flight that I ended up in coach.

When I look at the Profile page, all it says is "closed". I can't remember what flights I used SWU's or Miles. Is there an easy way to look this up?