Google Maps - Mashup not working

Please see http://site9.pro1.ictgateshead.org
The latest 3 posts contain Google Maps displaying correctly.
http://site9.pro1.ictgateshead.org/gateshead/
This page aggregates the 3 maps above using the Google Maps plugin. The locations appear but:
1. The link to Post for each item links back to the page the mashup map is on, NOT the individual post for the location.
2. The directions links do not work on the mashup.

No doubt I've done something utterly wrong. Your assistance welcomed please.

I am using latest version of the plugin and WP 3.8.1

thanks
Peter