To stake you'll want to create a "trezarcoin.conf" file and put this into it:
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irc=1
dns=1
qtstyle=2
daemon=1
server=1
stakegen=1
logtimestamps=1
minersleep=2000
stakemindepth=1000
stakemintime=24
stakecombine=2000
stakesplit=4000
port=17298
rpcport=17299
rpcallowip=127.0.0.*
rpcuser=username
rpcpassword=password
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Place the trezarcoin.conf file into your /TrezarCoin/Data folder.

Start your wallet up with your coins in it.  Unlock your wallet if it's locked.  After your coins mature for at least 24 hours, then staking will commence.