The troubleshooting does answer it exactly:
http://www.zenphoto.org/2009/03/troubleshooting-zenphoto/#16
You have to access your mySQL database. Please ask your provider if you don't know how.
Btw, the host does not matter as I don't know any of them anyway...:-)
Thanks... have been finding my way around and found that. I deleted the Administrators table as suggested, but cannot find how to "run setup". I don't see that in the MySQL database on the server. Would that mean I'd have to re-install the whole program? Would that be safer?
Sorry to be such a newbie at this.... I've always had programmers working for me.
@a1000w, if I'm understanding you correctly, you didn't install zenphoto yourself, but as an option through a host using something like simplescripts or fantastico? If that is the case, you'd want to direct your support questions to them. There are multiple reasons for this, some install programs remove the setup stuff afterwards etc. Not only that, they likely aren't using the most recent version which is the one that support is provided for.
@micheall: thanks..;-)
@a1000w: You are giving in very fast, don't you? Sorry, installing scripts on servers requires some knowledge or the willingness to learn a few things at least. You can run setup by pointing your browser to www.yourdomain.com//zp-core/setup.php`. A simple forum search on setup would surely have brought that up.