Newbie help with kirupa.com tutorial

i’m ridiciously inexperienced with this flash thing, and my goal’s to learn it by the end of tonight.

so there’s this tut here, for a simple drop-down menu which i’m using to learn about symbols and actionscripts. but i have a question

the tut’s here:
http://www.kirupa.com/developer/mx/dropdownmenu.htm

on the last step (step vi). it says:

Now click on the new symbol and add this piece of code on it:

[font=Courier New][color=#0000ff]on(rollOver) {
gotoAndStop(“closed”);
}[/color] [/font]

This just tells the timeline to go to frame 1 (labeled “closed”) when the cursor rolls over the symbol!

i doubled clicked on the new symbol, but the “action” menu doesnt allow me to type/paste anything in. so where am i suppose to add that piece of code? i download the final source file, and the menu works, but the action thing still isn’t there. so i have no idea where i’m to type that code in.

thanks in advance for the help.