You can download all the files named in a self-extracting archive here.
The 3 homepages, main menu, world clock and the picture gallery are just .swf files.
If anyone can modify them, I think that just this could open the phone up to many more modifications in itself. I've tried to use the LG Vu's Extended Interface Package, but I haven't been able to get it to work. The two phones are probably too different.
These are the locations of the files on my Xenon:
\Media\Idle\Flash\HelloUI - Contact Screen
\Media\Idle\Flash\ShortCut - Shortcut Menu
- shortcut.swf - at&t shortcut menu
\Media\Idle\Flash\WidGet - Main Widget Menu
\Media\Menu\Black - Black Theme Menu
- Top_new_6.swf - at&t Menu
\Media\Menu\White - White Theme Menu
\Media\swf - World Clock, Photo Gallery