1: Stop gaming in Lion
2: Install Windows 7
3: Game in Windows 7
4: Get better overall performance.
I just installed it on bootcamp maybe 2 hours ago and right now I'm trying to find a program like the one you stated that works for Windows and my wired controller.
Read around; you get better performance across the board when you game in windows.
Whilst this isn't addressing your problem....he's actually right. Getting hold of a copy of windows and putting it on bootcamp is almost as easy as the other solutions for getting an XBOX 360 controller to work in os x.
Also, as someone with Fifa12 installed on both os x and windows 7, I can definitively tell you that the performance of the game in the windows environment is a million times better: Under osx my fans are churning and the graphics don't look great, under windows the graphics are highest settings possible and the fans aren't going half the speed.
I know it's not the solution you're looking for, but honestly, unless your specific game is optimised for os x, you'll get a better gaming experience in windows - graphics drivers have better support, games are developed more for the windows environment and supported more under windows.