flash not working properly in dreamweaver

I'm building a flash based site (Flash MX 2004) with a main swf into which
other swfs load. One of the swf's loading into the main one contains an mp3
player I put together with a loading progress bar and a play position bar. The
mp3 player loads external Mp3's into the swf. All the flas are set to publish
in flash player 6.

My problem is that when I test the main swf or the individual music swf the
load and play position progress bars work. But when I embed the main swf in
dreamweaver mx 2004 the progress bars dont always work - In Safari and Netscape
7 they work some of the time but in IE they never do. I have removed all layout
formatting for the moment as I wandered if the table alignments I was using
might have had an impact.

The flash actionscript for the progress bars compare the mp3's bytes loaded
with total bytes and track position with hard coded total mp3 duration and
function in an onEnterframe action. All other functions within that action
including a track timer display work - I just cant figure out why the progress
bars dont.

All my files - swfs, mp3's and html are in the same folder. I'm a dreamweaver
novice - not sure where to start and deperate for help on this.

Another issue I have which maybe connected with this is that when I play the
music swf in my flash player (7) it loads fine but when I select a track it
crashes (but if I select a track either in flash test movie mode or in
dreamweaver browser preview they play?).

By the way I'm on Mac OSX