[Zope] bug ? zsql methods in zclasses.

[chas]

>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