Take your textmember and make a sprite on your stage, edit the cast member properties of it so that the member is a 'fixed' size. That way only some of the text will be visible (the rest will be unseen, make sure there is alot of text in the member so it gets cut off).
Now in your button try putting this in the code
on mouseDown
repeat while the stilldown
member(desiredTextMember).scrollbyline(-1)
end repeat
end
This will scroll the text feild while the user hold the button down(make another button with the value as 1 to make it scroll the opposite direction).
This is only how to scroll the names, you'll have to figure out the code on how to have it controlled by a scroll bar (I would continue this but i'm in class right now and my teacher keeps giving me funny looks as I browse the net ;-)
3Y3