Because of dependencies it is doubtful we can now release an update prior to the release of WordPress 3.9 although we are expecting that to go into beta in a matter if days now.
However – if you are referring to making a user a forum ‘Admin’ then this is performed on the ‘Manage Admins’ panel (admins section of the forum admin – too many admins in there!). Although if you are referring to making a user a WordPress ‘Administrator’ then you do that buy editing their user data in the WP admin Users section.
Perhaps discussing what you mean by “not find it’s theme” might be better?