Controlling root timeline with movieClip

I load an external movieClip into a blank movieClip and then I also have a stop on the root timeline. After the loaded movieClip is finished playing I want to move to the next frame on the root timeline.

I've tried _root.play(); and play(); on the last frame of my loaded movieClip but the root timeline wont advance.

I've also tried _root.gotoAndPlay as well as gotoAndPlay.

Can anyone direct me to a tutorial that explains controlling the root timeline with ActionScript from within a loaded movieClip?

I have no trouble using a loaded movieClip to load other movieClips on to the root timeline but I can't get it to stop and go. HELP!!!

I load an external movieClip into a blank movieClip...

First, you're not loading a movie clip, but an external .swf...

That said, _root.play(); or _level0.play(); should work! If you only want to move the main timeline by one frame, you could even use _level0.nextFrame(); also...

If it still doesn't work... You've got something else wrong, and should attach your .fla, zipped up and in a MX only format, not MX2004.