It’s possible to delete the password in Registry. Start “regedit” (e.g. in your windows start search). Go to HKEY_CURRENT_USER->Software->Fiesta! or FiestaNET. And delete this key/folder. The administrator will be removed.
Of course, if you ask, why is it so easy to delete – well because people forget sometimes. But still, it’s possible to lock access to regedit using Windows user rights, so in case you use Fiesta in some club and you don’t want them to change anything, just create standard windows user and let them use this account always.
Michal