i don think there is a solution. When you import a swf, actionscript doesn’t work. You simply import the main timeline only (movieclips don’t play either)
maybe there is another way, but this is what i know so far
still not too sure if i understand your question correctly, you said it works fine on it’s own, does that mean that it stops working completely when loaded?
if so…
no it shouldn’t stop working. check your script - sometimes if you call an object with _root (in snow swf) you may end up trying to call one in parent swf. try changing _root to _parent