Inserting a Digitial Counter in Flash 8

I’m trying to add a digital counter that goes up to 30 seconds, and then stops.
I need it to look & behave like the clock that appears under the “before and after pictures” of the following website:
[LEFT]
[CENTER]http://www.youthology.com/
[/CENTER]
[/LEFT]

I noticed a lot of tutorials on how to insert a regular clock, but this is a different type of clock. I am needing the following:

-More like a stopwatch behavior.
-stops on its own after a certain amount of seconds

Any tips or tricks on how to go about doing something like this?

I bow to the flash experts, and will sacrifice a baby lamb for any answers (kidding…unless you really want me to):flower: