[Solved] Save files question

[Synnae]

So, I downloaded a 100% save file for Metal Slug XX (US version) and I'm trying to load it. The archive came with two .png's (that are apparently useless), a .sfo, and a .bin - then I put all of the 4 on "memstick > PSP > SAVEDATA" as you can see below:

-ttp://i.imgur.com/4hcsIc3.png

I don't know what to do next, though. I ran the game and apparently the file wasn't there. What should I do?