So among the small things I've found out today is that moodle does some interesting things when you upload html pages and try to serve them through a moodle course. If the filter files configuration is on then the moodle text filters may rewrite things in the file, making smilies appear or adding the theme css and moodle javascripts eg. Ufo.js to the header of the file. It also means that if mediafilter is turned on, links like a href="something.swf" are automatically rewritten into an embedded flash object. Quick tip to disable this is to add a question mark onto the end of the filename. A href="something.swf?" will not be rewritten.