Is there a way to tween dynamic text boxes in Flash 8?

actual site:
https://filebox.vt.edu/~gyanez/flash_test/

source in:
https://filebox.vt.edu/~gyanez/flash_test/source/

I am trying to do the following:

Create a dynamic text field that autosizes to fit the text both in horizontal and vertical directions (dynamic text field filled in with text by external .txt file using LoadVars).

When the user rolls over the main image the text field will tween into place (act like a caption for the picture) and when the user rolls off the image the text field will tween off the page.

I got the autosizing to work but the tween is getting confused. The way I am doing it right now is I actually created a text field on the stage and tweened it. So I think Flash is getting confused b/c the text field I created is a certain width but than at the end of tween I use actionscript to autosize it. See the site to see what I mean. The tween effect is contained in home.fla.

So I am wondering if actually just doing the creation of the textfield and the tween of the textfield in AS is the best way. Can this be done? I would then have the tween autoadjust so depending on the height of the textfield it would have to tween further up than a textfield that is only 1 line high (again look at site to see what I mean).

Thanks a bunch guys. This stuff can be frustrating but feels good when you get stuff done along the way ;-).