I take it by the errror messages produced I'm not able to do this..
address_line1||', '|| address_line2||', '|| address_line3||', '|| city|| Supplier_Address
..in my XML Publisher xsl Data Template file..
Caused by: org.xml.sax.SAXParseException: <Line 13, Column 20>: XML-20201: (Fatal Error) Expected name instead of |.
So how can I acheive putting several fields into one like you can in SQL?