Wish i could

hi everybody,
take a look at this site http://www.hjschlieker.com. The whole site is great, in my opinion, probably because i’m a self taught painter too.
I’m particularly attracted to the navigation system and wish i could be able to build something like that. Any ideas on how does it work? Anyone out there interested to try to emulate it with of without my humble help? (Xml driven and as2.0 of course!).