[Exist-open] REST xquery

[Bill B. <bb...@ma...>]

New to exist/xml/xquery so I hope this is not obvious but:

Running exist with a new collection (/db/dja) and one xml file 
(DJA01.xml) I am able to get the REST interface to return the whole 
docuemnt with this:

http://10.1.1.41:8080/exist/rest/db/dja/DJA01.xml

but any GET-style xquery returns the same simple xml reference to the 
file, but not the actual content:

http://10.1.1.41:8080/exist/rest/db/dja?_query//div1

returns:

<exist:result>
<exist:collection name="/db/dja" owner="admin" group="dba" 
permissions="rwur-ur-u">
<exist:resource name="DJA01.xml" created="2007-01-29T09:49:53.114-05:00" 
last-modified="2007-01-29T09:49:53.114-05:00" owner="admin" group="dba" 
permissions="rwur-ur-u"/>
</exist:collection>
</exist:result>

instead of the actual set of div1 xml elements. Yet the example 
collection of the shakespeare/plays/macbeth.xml does return elements and 
their content:

http://10.1.1.41:8080/exist/rest/db/shakespeare?_query=//STAGEDIR

(althought certainly not all, as I understand XQuery's // path should.

Any pointers? Could this be an index issue?
Is there any tutorial or better documentation showing example REST-style 
GET with xquery AND what one ought to expect for output?

Thanks in advance!

-BIllB