Help with mac doc from jrgraphics.com

I got the mac doc (MX 2004) and I have it customized graphically to my needs. so does anyone know how to make text like the title of the icon appear above it on rollover. I tried putting a button inside the icon movie and just plain changing file type of the icon movie in library to a button and adding the text there. but no go… I’ve tried searching the forums, but I can’t find anything related. any ideas?