[Hat] Summary page

I thought we really needed a page that summarises how each tool works, and I was bored on a Friday, so I had a play. http://www.cs.kent.ac.uk/people/rpg/tatd2/icons/ Who want's to criticise? All the text is taken from manuals at the mo, it probably needs some better copy written. Bob p.s. I know it renders right in Safari and Firefox, but if someone could confirm how badly internet explorer is broken, that'd be useful.