Scrolling text with buttons

I am using CS4 but my file was created in an older version therefore a lot of the actions are in ACTION SCRIPT 2.

I’m trying to create dynamic text scroller. The default UI scroller cannot be changed in AS2 or I cannot do it.

I’ve tried using the below tutorial.

http://www.kirupa.com/developer/flash5/scrolltext.htm

i have been through it 100 times. It does not work for me. i have checked the variables a million times. Is there some compatibility issue with this code and Flash CS4?