Hi
Errr, just at the bottom of the page, under the editing/comments is the "Save Page" button. I can see the change "Markers" made at 19:46 hrs (GMT), so about an hour ago.
I'm not sure what the problem with an http address was. Can you try it without doing any [] brackets around it? I think internal links need a double [[]] but external ones only need a [] Also the <tt></tt> tags make the text look quite tiny in the web-browser i am using. I'm not sure how to do "coding brackets". I think you just put the code on a new line and put a couple of spaces at the beginning of the line.
Regards from
Tom