There are a couple of ways to setup the images in the gallery on any Allwebco template. The method outlined on this page is to copy and paste over the gallery .jpg images. Another way is the "file overwriting" method. Click here for more details on this other method.
On some Allwebco template galleries the thumbnail sizes are not defined. This is so you can have any sized thumbnails that you would like to use.
Replacing the Thumbnails
A quick way to replace a thumbnail is: Open the picture you want to change in your graphics software. We will open the "gallery1-1.jpg" in this example. Then open the new picture you want to use as a thumbnail at the same time. Make your new picture as similar to the size of the existing "gallery1-1.jpg". In Photoshop this would be "image", "image size" on the menu. Once the size is close, do a "select all" on your picture, choose "edit" "copy", then select the "gallery1-1.jpg" by clicking anywhere in it's window and choose "edit", "paste". Save the gallery1-1.jpg and your web page will be updated. (see picture below)
IMPORTANT NOTE: Hosting areas are case sensitive. Be sure you name your files to match what is setup already. For example, be sure you save gallery picture number one as "gallery1-1.jpg" and not as "gallery1-1.JPG". Not being matched may work fine on your local drive but once you upload the template you pictures may not show up.