Hi Beth! Welcome to the forum!

Jon was right.... but here's a little hint I use.

I always start with a transparent background...then go the the layer manager and add a new layer. It is on this layer that I add the first image. This allows me to add a color or a texture to the bottom layer later, if I decide to.

To add the 2nd and 3rd images simply copy the image and do a Control L ( paste as a new layer).
Once you have all your layers set, you can play with the transparency in the layer manager.

Hope that helps!

Joelle

The sandcastles of our lives are nothing when compared to the tides of our destinies.