A Slight Problem with actionscript

Hello all. I am in a bit of a hole. Ok so the thing is i have my main timeline with the content and i also have buttons and now beside these buttons i have a movie clip now what i am trying to do is when i rollover these buttons they would have a new image appear accordingly. So i basically need to target the movie clip and for each button to go to a different area of the movie clip’s timeline. I have tried

on (release) {
targetPath(pic7_mc);
gotoAndPlay(frame2);
}

and

on (release) {
tellTarget(pic7_mc);
gotoAndPlay(frame2);
}

but these are not correct and its been a while since i have done any actionscript. Any help would greatly be appreciated.