None of those useragents should trigger this hack to select the mobile skin.
If you had to uninstall the skin as well as the mod, I would think that the mobile skin you installed was being selected as default? Also be aware that as an admin, if you manually select the mobile skin you will ALWAYS get the mobile skin until you select another.
To test this mod, fully, it would be best to make sure you arelogged off logoff so that you are viewing the site as a guest, and perhaps use a dummy user account also to test.
Did you test on my site at
www.thewholeforce.com ?
Sorry I can;t offer a solution, but as yet I am unable to find the cause of your problems...