Okay well other than telling you to open the window 100% no other ideas.
As far as your modifications questions on joomla your probally best modifying and including the file that comes for use with vb3 called inc_features.php. You can post modification questions on files in the mods forum of this site since modifications are outside product support.
To build a dhtml menu like that just follow how it is built for quicklinks in navbar template of
vb. You can also ask modification questions in our mod forum.