How to change controller layout for splinter cell: conviction for PC?

I got PC version of splinter cell: conviction and has problem with my controller
I am using logitech dual action controller for my PC games
It is cheap but I had no problem till now..but this game…AHHHH!!!
for some reason this game has strange default layout
when I hit RB it goes to menu…start button is zoom in/out…and when I press mode button left analog stick does not work…and I cannot find the menu where let me customize the controller option…what should I DO???? could this happen because of my cheap logitech controller???