Hey guys,
I see the same questions getting repeated over and over, so I'll make a thread that'll compile the basic info/links into one place.
Here's Shoryuken's mother of all joystick threads, should cover anything you need to know:
Essential Joystick thread (http://forums.shoryuken.com/showthread.php?t=132452)
And here's some NZ specific stuff:
Hackable 360 pads in NZ (http://nzism.alphaism.com/forum/index.php/topic,341.msg6371.html#msg6371)
Slagcoin, great information on making custom sticks.
http://slagcoin.com/joystick.html
Dual mod diagram (http://nzism.alphaism.com/forum/index.php/topic,574.msg12309.html#msg12309)
Added SRK's Essential Joystick thread, which really has just about anything you could possibly want to know.
Added Slagcoin since it wasn't on here already.