To save anyone else going through this.
Netgear Gateway to client VPN requires their proprietry software at 40 quid a pop.
However Shrewsoft do a free client that is Win7 & Vista (all versions) compliant.
Setting up is quite nonsense as remote and local addresses use non FQDN settings.
www.vpncasestudy.com offer advice about setting up these weird settings in the routers and clients to talk to each other.
Using software from Joikuspot allows use of your mobile as an access point enabling you to tunnel in from an outside IP while watching activity on your local Intranet.
Works a treat and all free.
I can now see my grass growing on CCTV from anywhere which is why I wanted it
Waldo