swf comunication on html page

[buildrebuild]

Hi everyone,
I was wondering if anyone knows how to control flash movies on an html page.
I am building a music preview page and want to load different tracks into a flash mp3 player like this...

www.bleep.com

Anyone know how to do this?

Thks in advnce

BRb

[Flash Gordon]

I ansered in your other thread.