I'm not too sure about that. I use an Xbox360 controller to play, and I have the same problem. I actually succeed in running about 1/3 of the time. I'm using Pinnacle Game Profiler, and it's got a feature that lets you press two keys using one button, so I think that you can set a button to press the right arrow key twice rapidly for example. Not too sure about XPadder though, sorry.
this is gamespot u noob not gamefaq - EE2lemmonhead