Opening a separate swf file from within flash

God this is bugging me. I have already found a solution once, but my computer crashed and for the life of me I can’t find the site again.

Anyway, I’ve made a complete site in flash, with a separate mp3 player (in swf format). All I would like to do is create a button on the original swf file (which I’ve done) that will open the mp3 player in a separate window.

When using the getUrl function, IE opens up with a broken quicktime logo in it. I can manage to open the player using the loadMovie function, but unfortunately only on top of the original site in the same window.

The idea is that when the radio player is open, it can be left playing underneath the original site whilst people still browse.

I know it can be done, as I have achieved it before, but can anyone help now and offer the correct actionscript?