I wrote a reply to you and clicked on the post button. While I was writing the reply, I was automatically logged off. My reply was rejected. Extemely irritating!!!
Anyway, like I indicated in my reply to eCat, I used the zipped file method mentioned in the article you provided a link to. Thanks for the link. It validated that method.
The files I'm trying to download are images that a client has purchased. Thus, I don't want anybody else to get to them. Right now, I've created a directory on my website that is not linked to from anywhere. I put an exclusion for it in my robots.txt file and included a meta exclusion for it in the index.html file in that directory. I'm hoping that those 2 things will keep the bots from listing it. I'll provide my client with a link to the index file so he can download his images. Later, I'll delete the directory from my website so nobody else can get the files.
I don't like this method and would like something better and more secure. I can't count on having computer-savy clients and need something simple for them to use. I figure that means I need to write some kind of server side program that will push the requested file down to my client. Although I know and understand html, I'm not yet savy about client/server type operations and don't even know where to start looking.