IIRC this happened around the time they bought Macromedia. I used to use Dreamweaver (v4.5?), Fireworks (v3 or something like that), and Flash (v6 I think). Now they're just part of the CS. I don't use them anymore and only purchased CS4 with PS, Illustrator, the page layout app, etc., not the Web tools. I don't know how much improvement they see each version...but maybe a lot, with things like HTML5 coming round.
Edit: Looked at your demo real. It's very nice. I liked the "here's what I did" to it thing on the water drops...but had a hard time telling on some of the clips. Is this something that someone hiring you for a gig would look at and know immediately what you had done to each clip and how good that means you are? Sorry. I'm a complete know-nothing on video and VFX.