ActionScript 2.0 :: "_root" Is The Only Thing Showing Up In The "insert Target Path" Window

I've got a button in a movieclip that, when pressed, I want to control the timeline of another movieclip (instance name: video).

I enter the following code on the button and it does nothing:

on(release) {
video.gotoAndPlay(2);
}

Now I suppose the path is wrong but, when I click on the "Insert Target Path" icon in the actions panel, the only thing that shows up in the window is "_root". It doesn't matter which movie clip I am in, when I click the "Insert Target Path" icon, all that shows up is "_root".

There is a heck of alot more to my movie than that, where are all the movieclips? The "video" instance is nested 3 movieclips deep. I've tried entering the path manually too, but it don't work.