AbleCommerce Shopping Cart Software

When I try and use the slideshowextender from the asp.net ajax toolkit I recieve and error that says it cannot find the web method getSlides(). The method is in the code behind file of my user control. I've tried to put the method into the code behind file of the page that the user control is on and I still get the same error. Any Idea?

Did you register any assemplies on the page? For example, to use the componentart ones, you have to have
<%@ Register TagPrefix="ComponentArt" Namespace="ComponentArt.Web.UI" Assembly="ComponentArt.Web.UI" %>

I only have the ajaxtoolkit registered on the page.