buro9, I can't blame you for being skeptical, it's a good attitude to have on Hacks!
As for screenshots, I wanted to do those today but I didn't get round to them.
As for the Templates issue Faranth mentioned, it will most likely be fixed in
HTL 1.1
Back to what the HTL can do: it doesn't scout through files or templates to see what changes have 'magically' been made. What it does is provide you an easy to use interface so you can log your changes, each and every one, so that they are stored separately, in a nice organized manner. 'coincidentally' this manner can be utilized to create HTL Installer files that you can use to release your hack to the public - but you don't
have to do that.