JGoodies-looks is available from source...dependency should be changed.
jabref-1.6 doesnt depend on jgoodies-looks-bin:
it's the same for the 1.5 version
i simply didnt commited my changes, i'd prepared anything, including the changelog:
06 Jan 2005; Jan Brinkmann <firstname.lastname@example.org> jabref-1.5.ebuild,
Jabref now uses jgoodies-looks instead of jgoodies-looks-bin.
sorry, fixed now