thanks guys for your answers.
I will give my feedback on them when i have more time today.
Another question: i have downloaded the wallet on supercoin.nl, also extract the blockchain snapshot. I have replaced my wallet.dat file in the supercoin folder. Now it says: wallet.1511162266.bak? I dont understand. Is that correct?
Also, my wallet has 0 connections and doesnt sync. What can i do?
Use latest nodes from here for getting active connections.
https://www.coinexchange.io/network/peers/SUPER
https://chainz.cryptoid.info/super/#!network
https://novaexchange.com/addnodes/SUPER/
Thanks for your answer. I am not very technical. Could you explain me how i can add these nodes?