Thanks guys - that is a lot to think about for me. I though I could just add the # line at the top - with a path to some web based perl interperater or something and it would then work.
For graff: I use frontpage - and from within it I can insert a script, and yes much of the above did work locally for me. I can't remember how I got it to work though, because I only just found one of my old files that was displaying the time, and added the env displaying - and it too worked so I thought I was getting somewhere.