Hi SD, many thanks for your FF and TB Tango skins. They are my default on XP and Ubuntu. Just one thing I see with the TB skin in Ubuntu - for icons with drop-down menus, it seems to suffer from the old issue of oversizing the icons. If you recall, your gnome FF theme had the same issue in Linux but not in XP, which you subsequently fixed. (Indeed, many FF themes suffer from the same issue in Linux). I note that your screenshot of the theme doesn't show this. I can send a screenshot of TB in Ubuntu if it's of any help.
Cheers