Originally Posted by HollyS
Hi, yes you sure can! Templates come in layers.... and when you add papers and clip them to a layer, it's still it's own layer. You need to add the drop shadow on the layer that was in the template, not the clipping layer. Hope that make sense!
Also, on our menus at the top of every page, under Resources > Tutorials, there are tutorials with screen shots that may be of even more use to you. Here's the on templates in Photoshop...