Flash experts...is this hard to do?

[d|b]

I have some basic knowledge in PHP, MySQL, CSS and HTML and am reasonably good at using Photoshop. I new to flash however and I am wondering how hard it is to make something like this:

http://www.flashden.net/files/23319/index.html

Has anyone here done anything like this before? I would also be interested in making the flash script dynamic. Would that be difficult?

Thanks

 

[d|b]

Well I know that this sort of thing can be done with Mootools but the JS in mootools seems to be quite tough. Has anyone had experience with this...I know NOTHING about java.