Would someone please be so kind as to explain how to use the SlaveAccountExport EA ?

I would like to be able to send trades from a demo MT4 Broker to a live MT4 Broker. For example, if I have a demo MT 4 account with Alpari and have certain EA's running on that account and want to send the executed trades from these EA's to a live EA MT4 account with FXCM, how do I set it up ? Do I run the SlaveAccountExportEA on the demo alpari account with the EA's that I'm using or what ? How does figure out how to send the trades to my live account ? I'm confused, or perhaps a little stupid.