Greetings lady persephone,
It took some digging, but if you keep following the links you end up here: http://community.us.playstation.com/t5/PlayStation-Network-Support/bd-p/22039
, which is the support forum for Playstation Network. If nothing else, they'll be able to point you in the right direction. It is the US site though, but you should be able to find the same for any other country in case you need it.
I've had a PSP for just as long and haven't booted it up for a while, maybe I should check this too... Oh, and maybe download MediaGo, besides being a really good music player, it also makes backing up saves and installing games for the PSP much easier (sadly, the VITA has gone back to a small tool that heavily checks copyright and DRM nonsense).
Oh, and if you don't have it yet, I very much recommend the VITA, it's a very underrated piece of hardware for people who want a little more than mobile phone apps as gaming entertainment. It's own library of games isn't stellar, but the wealth of older titles that run smoothly on it makes it really worth having; this includes a lot of PSP titles.