Are those still unsigned? I'm not going to switch my x64 windows to debug mode on every restart... that's about the only reason I'm still using motionjoy.
I was using the PS2 to USB adapter and the drivers for it enabled force feedback. I switched to motionjoy + PS3 pad since then, but the FF was still there. I assumed motionjoy handled it, but now that the OP says FF didn't work... maybe it's the PS2 driver that added the rumble feature to the PS3 pad too? I have the driver backed up
here, in case someone is interested.
As a sidenote: I remember I used to "predict" trees coming while getting the keystones for moogle cause the pad would vibrate when a big monster started walking near you.