I'm trying to transition a site from DTML to ZPT.   I have some ZClasses that I would like to use "as is" until I get a chance to rewrite them.

When I try to display an object in a Page Template, it fails (the Zlcass instance is called "bubbles" and is a folderish object with a few properties and contains a Photo

Here is what I try to make it work:

<span tal:replace="structure container/bubbles"/>

Result is the page is rendered with nothing where the object should be.  If I view the source of the rendered page I see <highlight at bubbles> where the object (a highlight named bubbles) should be.

Then I tried:

<span tal:replace="structure container/bubbles/index_html"/>

Result is:

"Caption" is a property of the object.  index_html is a DTML method

Am I trying to do the impossible, or am I missing something?

Kevin