PSP BRITE 5.03 GEN A CXMB HELPPPPP?

I FOLLOWED LIKE 90 VIDS BUT THEYRE ALL THE SAME I EXTRACT THE ZIP FILE COPY THE CXMB AND SEPLUGINS TO MY PSP ROOT AND THE VSH IS CORRECT AND EVERYTHING IS BUT WHEN I REBOOT MY PSP AND ACTIVATE HEN THEN GEN A I GOTO RECOVERY MODE AND THE PLUGIN IS ENABLED I GOTO THE THEMES AND NOTHING IS THERE BUT THE SONNY OFFICIAL THEMES, IF I PUT THE THEMES IN PTF THEY APPEAR BUT IT SAYS FILE CANNOT BE OPENED WHAT AM I DOING :( ;( D: