Along all this, the suggestion of watermarking the photos was brought up several times. Is there by any chance a Tut here that explains how to do that using the various different editing software? I for one would be interested but as I use V7 of Paintshop the ones I've found in Google don't work too well.
Any editing software that allows you to layer images or text will do. Just create a new layer on top of the photo and type your name across the center of the image or put a logo in the center of the image. Then adjust the opacity level if that text or logo down to maybe 25%. You may have to take the opacity level lower or even higher depending on the photo lighting levels and based upon eyeballing it. Once you get that level done just save the image as a RGB jpeg for online use and you are ready to use them.
Hope that was helpful