Change Symbol Position on Mouse RollOver, Add Points

Hello,
I am just starting Flash CS3, and I would like some assistance with a game.

In my game, a symbol (movieclip?) is inserted somewhere in the stage randomly. If you hover over it, it changes position automatically.
I converted my target into a MovieClip, and made it possible to export for ActionScript.
I put this in the ActionScript Class file

class Target extends MovieClip

I can't find the code I need to
1) make target a button, graphic, or movieclip
2) make the target randomly appear on the screen when frame is loaded
3) make the target randomly move to a different place when hovered over
4) make a score variable, and make it go up each time the target is hovered over.

I have an idea of how to do #4, something like

{
var score;

function OnLoad ()
score = 0

function onEnterFrame ()
score=+1 if {code for hover over symbol}


I would greatly appreciate any help.

Thank you,
Bchandark

If you make the target a movieclip you can give it the features of a button.

A lot of answers to your questions can be found at flashkit.com. they have tutorials, file downloads and a forum