Thanks guys.
I did do:
apt-get update
before I started.
I just ran it update again to check, and the distro is wheezy.
I watched Rods video, but don't want to update to LCNC 2.8 or above as I have had a working system, and don't have the time to play around getting it configured again for the joints change, mesa card latency etc.
Cheers,
Mark