Thanks, that was exactly what I was looking to do!
There is one more thing I need help with in that flash however. If you go to my link and look at the file (it's now saved in Flash MX format so you can see it), you will probably recognize it as you helped me a great deal with it before (thanks again!). I adapted the scrollbar you made for another file into that one, but I am having two problems with it working.
First, the draggable thumb stops when it reaches the bottom of the scroll track when you hold down the down button (well, it stops just above it, which I think is part of the problem). If you click and drag the thumb, you can get it to go down all the way. However, once it's there, the down arrow now works again and the thumb is able to move off of the track. I think for some reason it's not synchronizing the bottom of the track and the lowest _y position the thumb can go.
The second problem is that the scrollbar isn't scrolling my movie clip with text inside. I'm pretty sure this is because my earlier actionscript loads text from the text file into a duplicate movieclip, whereas the actionscript I copied from your other flash file you made me had no duplicate movie clips. I'm no wiz with actionscript, so I don't know how to fix it so that it will scroll the duplicate movie clips with text.
Also, while you needn't show me this part, I would like to know how I can have Flash see if the movie clip with text loaded in it even needs to be scrolled. If there is little text and no scrolling is possible, I'd like to hide the scroll bar images. I'm guessing I'd just use and if statement to see if one of your variables (like the lowest it can go down) is equal to, say, the height of the scroll bar. If you could tell me if this is right or not, that'd help too.
I have the file you made if you wish to reference that too.
I really can't thank you enough for all of this.