XSLTransformer and XSLT Extensions

We use a Lotus Script agent to import XML in a Lotus Notes database. It works fine, converting the XML with a XSL stylesheet to Domino XML.

The problem now: we had the XSL improved by an XSLT developer who has simplified our code by using XSLT extensions.

When I import the file, the transformer log contains the following error: The specified function is not available.

Can anybody tell me if and how I can use XSLT extensions with the NotesXSLTransformer class?

Erwin