Evolution address book, extended address field

[Mike Reed]

Hi,
Using OO I can see my Evolution address book. However, from what I have learnt searching the web Evolution stores its contacts in vcard format in a Berkley DB. The first line of the "Address" in the Evolution contact editor is stored in the vcard "street" field. All subsequent lines of the "Address" in the contact editor are stored in the vcard "ext addr" field. In OO the vcard "steet" field can be seen in the addr_line1 column but I can't see the vcard "ext addr" field in OO. I would have expected it to be copied to the addr_line2 field but this column always seems blank. Have I missed something.
Mike.