Default "Back" button on Wizard

Hi all.

I have a Imate K-JAM (with AKU2 ROM), and like it a lot.

I do however have some software that requires a "back" button, which the Wizard does not seem to have. I have tried all the buttons, with shift and the function key, to no avail. Does anyone know about software that can remap a button to function as "back" (like the camera button, which I never use).

Alternatively, are there any other suggestions to get a back button?

Thank you in advance.