[Zope] trying to learn Zope and Zsql- help

[Sean Kelley]

Hi
I have followed a tutorial to create a zsql method, search form and a
search result page.  Now I want to be able to plug the search results
into another page by referencing the report object for a particular
match by somehow calling the zsql method and passing my search value to
it.  All of the things I have tried don't work so far.
I am trying to call the r_search_bycountry_report object and pass it the
value "United States" and have the results display in the calling page.
The object is located in a subfolder called SaleBarn
I am getting the error: unsliceable object

<dtml-in name="SaleBarn">
 <dtml-call expr="r_search_bycountry(Country='United States')">
</dtml-with>

Any help would be appreciated.
--
Sean