Well, if any of you have an answer to this, you’re welcome to post it, but I thought I’d post that I came up with a seemingly easy solution. I took the original header into fireworks, and cut out all the blue, so all I had was the frame, with a transparent middle. I will save that somewhere special, and any time I put up a new pic, I will just paste that frame over the top of the pic, and everything works fine.
So I think I will just do that. Thanks anyway!