I had thought about just giving it a .zip extension rather then actually compressing it. You think it is safer to compress it.
Yes. If it's being corrupted by the process of downloading, you'll know immediately when you try to unzip it.
How do I place it up on my website for download. Zipped also, but will only a hyperlink to the file work or does the hyperlink have to be placed into a page on the website.
I don't think it matters. I've downloaded zip files both by direct link and by a hyperlink. Sometimes I need to right-click and "Save As".
I see only one save. I cannot find an extension for it at all.
If you have display of extensions enabled in Windows, the extension should show (if it has one). Saves don't have to have file extensions -- depends on the game engine.
It appears to be one file, but the person I sent it to mentioned no picture in the load screen for it (he could not load it).
It's possible saves aren't transferrable -- especially if you have different versions of the game. Also it's possible for games to put part of the save in the registry, or alter a 2nd game file rather than put save information in files you can see. Or there can be date information in the saves that fouls things up when you try to install a save from an earlier date on a 2nd computer. Or the save can include information about the computer the game was played on, which is even worse because it will never match up.
But if you've been trying to send the save without zipping it, try zipping it first.