PHP Web Services Without SOAP
Subject:   other values as params
Date:   2003-11-05 21:54:32
From:   trachtenberga
Response to: other values as params

Check out Amazon's Web services home page at: for the full scoop. I'd point you directly at the API Guide, but I can't find it linked to on their site. But, if you download their SDK kit, it's all there.

In the meantime, however, try setting the "mode" parameter to "videogames" and see if that works for you.