Hmmm how can i find out if my node is working? I did all the instructions and it seems that its working, but how can i be sure 
I had problems installing the miner, but after I reported a bug in Github it was fixed in a few days.
Version 0.0.8 worked fine and when accessing: http://127.0.0.1:8181/web/#/main from the same
computer wallet is installed to, I can see the walelt syncing and number of earnings there.
The only question which still remain nanswered is: Do tNKN tokens earned on test net have value?
Can they be swapped for normal NKN tokens?
They will be swaped to normal NKN tokens, thats what i got from the Telegram chat. They already swaped a couple of times. However the ratio is 5:1 or better, with 5:1 being the worst case scenario. Thats what you can see on nknx.org.