Loading an .swf file w/ actionscript from the library

I’m stumped… I’m trying to load an .swf file which contains quite a bit of actionscripting from the library. Only problem is when I use the “attachmovie” command the game loads but the the playhead on the timeline just runs through the game within 1 second and doesn’t even bother to stop when it hits the “stop” command. Anyone out there happen to have the solution?