Hey evilal,
You can get photoshop to add your blurb to all your image with only a few minutes of work. What you do is go to the Actions pallette and create a new action. From that point on anything you do will be recorded. So, copy your logo onto the image, or whatever then hit the stop button on the action pallette.
Now go to File->Automate. You can pick a directory and photoshop will preform your action on every image in it..
Also, once you get into thousands of files, you might consider serving them from a database. Then you won't have to worry about intelligable file names...
mute
