Scrolling in PPT 2000 is doable, G, but it's not as easy to control the
speed as it is with PPT 2002 (aka XP).
Right-click the textbox you want to scroll and select Custom Animation.
On the Effects tab, choose Crawl and From Right.
In the Order/Timing tab, click Automatic.
OK out of that dialog.
Drag your textbox off the left-hand edge of the slide.
Now play your slideshow so you can see the animation in action.
Unfortunately, there's no way to control the speed of the crawl, and
know that the further off the edge of the slide, the faster the crawl
happens.