Saves on Windows

[mr.chya]

The ULES saves are from the European version of the game while the ULUS ones are the US version of the game. Saves tend to be region specific so saves from a different region generally tend not to work correctly even if you change the name on the file to match the region of the ISO you are using. That said check out the faq here: http://www.ppsspp.org/faq.html
to see how to rip your copy of the game strait from your own PSP.