wonderlnet here is the url for your images
http://www.advanceg.com/cart/catalog/images/iface4_07.gif
I think it should be in
http://www.advanceg.com/catalog/images/iface4_07.gif
I suggest u move your /catalog folder to
http://www.advanceg.com/cart/
I hope this helps ( may be not .. lol )
but I do think u have a url of image referencing problem