Hmmm...Dave, I'm getting a pretty obvious error at validator.xmlrpc.com:
Ooh, a nasty error: invalid command name "ns_xml_getChildren"
Grepping the tar file, I see a 2 references to "ns_xml_getChildren" in ns_xml-rpc.tcl, but no definition. I see a ns_xml_getChildrenTrim...is that it? Any ideas? Thanks to both you and hafeez in advance...you're doing all the hard work! *grin*