Hi Richard,
The property to use is LinkToTargetURL and TargetURL.
TargetURL is a property found under the Viewed Lists property (where you set the lists to view) hitting Edit next the list name.
Target URL format would be http://…pageA.aspx?ID=<%ID%> . Each list has to have its own page to view the full announcement.
LinkToTargetURL is a property found under the Display Fields property (where you set the fields to view) hitting Edit next the field name. Just checked that property.
If you have any questions please let me know.
This is what the doc says:
Link To Target
If set to true, indicates the listview makes the field value a hyperlink to the URL specified in the <Link>TargetUrl attribute in the <Link>Viewed Lists property.
Use this element when you aggregate lists with different name. In that case, you specify a different TargetUrl for each list in the Viewed Lists property and the listview redirects the user to the correct URL depending on the list where the clicked item comes from.