Oh, and I want you to pay, so I'll deliver.
I received some new hardware in the last couple days and I am at this very moment working on the MadCatz compatibility issue.
To re-hash things, the interface is working perfectly with Sony brand controllers, but not with MadCatz controllers. I've tried a couple different MadCatz models that work fine with my PS1, but they do not respond to my interface at all.
Dan East