Hi Neil,

re:
> Still failing at networking

Do you mean in a strategic sense, or are you talking about one particular set of curves that you are not able to make a network out of? If it's the latter please post the 3DM file with the curves in it.

re: Tutorials - well, there is the one you found previously here:
https://www.youtube.com/watch?v=wLaPAeKPuqA

You might try searching for Rhino NetworkSrf tutorials.

- Michael