Hi Richard,
I am happy to hear you backtested the EA before attaching it to a chart. This is the first thing every trader using EAs should do. Always backtest before using. If you see a blue hat in the upper right corner of the chart then the EA is setup properly and should start trading. The next thing a trader should do is to adjust the lot size for the risk to the account the trader is willing to accept. Professional traders never risk more than 2% on any one EA and if more than one EA is being traded on the account will never risk more than 6% to the account.
Safe trading,
Alan