Welll, You need to put your sprx files in dev_hdd0/tmp/
Then to make them work the sprx files come with eboots. For example, Find the Region your game is and go to
dev_hdd0/game/REGION/USRDIR/ and put the eboot in here. Make sure it's the eboot that came with the sprx not some random eboot. You're Welcome. (Your Region is your Game Code)