Hi again,
I used your terrific tutorial fooling with some flower photos yesterday and everything worked beautifully except it's hard to get small enough .jpegs and use, say 6 of them and still be under 20kb. I don't think I'm missing some other trick, but it looks like the final file size is the added sizes of the .jpegs used plus a little. Has that been everyone's experience? The length of time for each did not seem to be a factor.