I'm not really bothered what Emu I use I just want one that works and I was told this was the best.
*Cough* NullDC *Cough*
Chankast is far from the best now, but if something doesn't work on NullDC and works on Chankast then use Chankast by all means.
Looks like someone who gave that advice has been away from the emulation scene for awhile. :lol:
But still, that doesn't relate to your problem/question at hand so as Agozer just said as long as you have the proper drivers from Microsoft for your 360 controller it should work fine.
Also as said ditch that pad plugin for another pad plugin. That plugin was a major bitch for me to configure back when I was using Chankast before the release of NullDC. I forgot what the other pad plugins were for Chankast, but theres another which is much easier to configure.