AS2_Newbie Needs Help with Vertical and Horizontal Scrolling

Hi everyone, I’m working on a software tutorial that requires me to have both vertical and horizontal scrolling. I downloaded the “Simple Custom Scrollbar” tutorial from this site and I’m trying to add the horizontal scroll part.

For the most part, I got it working except for the speed of travel and left and right buttons. Whenever one of the buttons is selected, the scroll bar jumps to the button and then slowly scroll past it.

Can someone please tell me where I went wrong?