That site is not very clear on it though. It's pretty poorly designed and doesn't readily take you directly to the Download, or mention it is completely free.
You have to make sure you are Downloading CopyTransManager and not CopyTrans itself.
It could be a useful program, though, I think WinAmp is more useful as it can be fully portable and not require the installation of iTunes AT ALL.
CopyTransManager requires you install iTunes at least once and (if you want) uninstall it before it is fully usable.