Do you meen to change your theme .. go here :
Code:
account.php?action=edit_settings&do=edit
end scroll to
Theme select your theme end click the
Submit
or do you meen to set your theme as default for everyone?
Go to phpmyadmin ... your tracker database > stylesheets change the default to another number ( id ) from 1 to 17 ... end now find your theme name end change to 1 id to be 1 .. now the theme is for everyone.
Good luck