need help, ePsxe not working

well...the title says it all.when i tried to play final fantasy 7 or legend of dragoon,the screen just fade black and it stays that way for half an hour!

i followed all of the tutorials from the sticky thread and it's still not working.
my computer specs are:
-microsoft office xp professional
-intel(R)pentium(R) 4 cpu 3.00GHz
-512 MB Ram
-9250 4X AGP (ati radeon???) not too sure
-and a dvd drive

somebody pls help me,what's the problem actually?
and btw, i'm playing the actual cd.

Somedtimes when using a real CD it will go slower or not work. That's why I make an ISO image from my real CD's and play the game from the ISO image. In order to make an ISO image dowload Alcohol 120%.
Here is the link:

http://trial.alcohol-soft.com/en/download_120.php

telling us your video plugin settings will help too.