[Zope] bug ? zsql methods in zclasses.

From the Zclass tutorial : "For the most part your methods will consist of DTML Method objects, SQL Method objects and External Method objects."

Sure enough, I can add ZSQL methods to a Zclass, but the ZSQL method is then inaccessible from other methods in the class :( eg. creating a search interface in this Zclass fails to list the ZSQL method in the list of "searchable objects" eg. even creating a DTML method and manually sequencing over the ZSQL method output fails. eg. the ZSQL method can not be accessed directly via URL for any of the instances of this Zclass - instead it pops up the "Authentication Error. Please log in" dialog box. Surely there is something wrong with Zope here ? chas