Hiz again
Well..., I gave the answer to this in another thread/topic/post in this same forum and it is located here (and, yes, the opossite move works on psx also)
http://boards.psxemu.com/showthread.php?s=&threadid=2722
I get dance mat yesterday, and this really roxx!!! (scorchmon - I couldn't think that you doesn't find the solution before, its so easy and logical to find !! xD) (its a joke, its a joke...

)
Ked that wasn't a stupid questions, it was a very good question and you can make for yourself a psx->pc adaptor throught parallel port that can make any psx pad work in your pc, even with vibration !! (emulating psx vibration as PC Force Feedback) so PC games with Force Feedback can make your psx pad vibrate!!, and of course it works with psx dancing mats,another psx pad-like stuff and some psx steering wheels (and some PS2 ones too, like dual shock 2 pad ) I don't have to say that I've made one for myself, here are the links for schematics and the way to make it (its hosted in www.emulatronia.com , one of the best emu sites)
http://www.emulatronia.com/reportajes/directpad/psxeng/index.htm
And here DirectPadPro web
http://www.ziplabel.com/dpadpro/index.html
from www.ziplabel.com
Byez everyone