Rockyuk,
1. Matchmaking plugin ( SkaDate) + Google Maps Location.
This requires complex custom code modification.
My suggestion is trying to contact SkaDate development team OR developer of Google Maps Location plugin with this request (http://
www.oxwall.org/store/item/436).
2. Html email templates.
Since SkaDate is based on Oxwall, the logic with regards to emails is one and the same.
You must edit corresponding language text keys. Each email has a text key in Admin panel >> Settings >> Languages . Check SkaDate's documentation to find out list of emails and their text keys. Contact their support if you are not able to find the document.