hi there hakujin.

i've look into flash menus before(never done it though:o)
i've herd that you can embed the flash menus into themes (flash themes)
and just select them i the THEME directory in your phone. my mate does this. if the flash menus still don't work, i would just re Flash it
again with another firmware, but that me:p.

i'm just trying to help. hope my advise has solved anything.