Close you wallet
Go to Start -> Run (or press WinKey+R) and run this:
%APPDATA%\BlitzCoin
delete everything BUT LEAVE wallet.dat
create new file: BlitzCoin.conf and add:
server=1
rpcuser=USER
rpcpassword=PASSWORD
addnode=89.164.145.53
addnode=93.188.215.21
addnode=37.187.129.122
addnode=96.46.206.30
addnode=188.165.194.96


start your wallet again and it should sync to the right chain