Hi WideBoy,
Try loading your Schema in the Stylus Studio XML Schema Editor:
http://www.stylusstudio.com/xml_schema_editor.html
To generate an XML document for just the personDetails and UKAddress
complexTypes, just select the node, right click one of them, and select
View XML Sample and save it. This is explained in detail here:
http://www.stylusstudio.com/xml_generator.html
I think that one of the differences between spy's xml schema instance
document generator is that it needs a document node (i.e. what you are
calling the "root node") to work. By contrast, the stylus studio xml
instance document generator works on any element / complexType. (I
think this is probably why it's not working for you right now).
Sincerely,
The Stylus Studio Team
http://www.stylusstudio.com