thats 21 karmas! ok then, I take it you have the software. Open it up and right click the first axis to set and choose bands from the dropdown. (probably best to chose the forward and back axis first, axis y).
On the screen that follows, move the mouse about 3 marks above the red center line and click to set a band. Then do it again 3 marks below the red line to set the second band. Next, press the green tick up in the right corner to save these bands.
Now you can assign keypresses to the upper and lower band areas, for the y axis that would be W and S (forward and back) just dont assign anything to the middle area because thats your deadzone.
Save the profile (File:Save As and make a name for it) and then rinse and repeat for the x axis (keys A and D) and any other axis you have problems with.
hth