[Urgent] MovieClipLoader Sound Class problem

Hi, sorry for skipping presentation, I'm in a hurry and need big help quick

1 - I'm using AS2 and know my way around it well

2 - I'm loading an external SWF using MovieclipLoader

3 - The external SWF has a MP3 file in it's library (exported for actionscript)
and is attached to a Sound Object.

4 - Running the SWF by itself, everything is fine, but once it's loaded in my main movie, it won't play, no sound, nada.

Is there some kind of limitations I'm not aware of when using the SoundObject/Mp3/MovieclipLoader???

Anyw workaround, solutions etc are highly welcome!

Thanks for your help,

O.