1º- ShutDown the server
2º- Make a Back up from the navicat
3º- Prepare install the Java, MySql and navicat in the other computer
4º- Copy back up and server files to the new computer
5º- Run database instaler and press full "y"
6º- Wait
7º- Open navicat and comprobe you have the database full, run the Back Up of the other computer. Now run LoginServer and GameServer and test it.
PD: Sorry for my english