OK, It's pretty easy to create a masternode,

Create an Address and Name it MN1 or whatever you want. Send 10k (exactly 10k) DNET to this address. Wait until there are a minimum of 15 confirmations to the transaction.

Then you need to go to the console and type; masternode genkey (record this key)

then go to your darknet.conf file and put the following in the file;

rpcuser=( Create a Random Username)
rpcpassword=( Create a Random Password )
rpcallowip=127.0.0.1
listen=1
server=1
daemon=1
logtimestamps=1
maxconnections=256
masternode=1
masternodeprivkey=(place key that was generated by mastered genkey here)

Now make sure your router has port 51472 open to the world. (its just for communications to other masternodes)

after all of the above has been completed reboot your wallet

then go to the console and type; masternode start.

If you followed everything exactly is should work fine.