Close the wallet if it is open.

Back up your flappycoin folder/s. Make sure you are backing up the wallet.dat and the blockchain files at a minimum.

Then copy the exe and the dll's from the new zip file, into the folder where your old exe is. When it asks if you want to replace files with the same name, say yes.

Try to run the wallet. If it syncs and shows your proper coin balance, you are good to go.

Then send me 10 billion FLAP to confirm functionality of send/receive