AS2 should also have the ScrollPane component (atleast I do).
The trick is that you can set a linkage identifier as the contentPath. The linkage identifier is set by creating a MovieClip, right clicking it in the library, selecting properties, clicking the "export for actionscript" checkbox and then entering it in the corresponding textfield.
This is also what you need to do if you want to put things in a ScrollPane at runtime, then you set the contentPath to an empty MovieClip in your library and just attach your clips into that.