Im new and need help with roms psp 1.5 plzz

Ok so i have the emulator (snes and the % thing to) and it says to click and drag roms into the non % file so i do. and then i click back goto games memory card and it only shows the emulator. i dont understand do i need to do something to the roms before i put them in?(aka convert them or something) any help would be wonderful thanks...

it wont show up in the psp menu, you have to start the game.
Highlight the snes emu hit x...... game starts then you scroll down if using snestyl then you will see a list of roms available. done :D

Here is a guide for the latest version of Snes9x TYL 0.2c:
http://www.dcemu.co.uk/vbulletin/showthread.php?t=11450