fceultra problems, how to setup my gamepad?

[Amfabeta]

Hi. I just installed fceultra and nes games works fine using keyboard. I tried to search an answer and tried this: fceu -inputcfg gamepad1 megaman2.nes but my gamepad (Logitech thunderbad G-YA ARC2) doesn't work. It probably doesn't work because I haven't installed my pad properly. The problem is that I have no idea what to do and what modules to load. My gamepad connects through gameport.