Perhaps I can help. First, I believe you need a RealTick III system to use scanning. Alerts still work, but scanning doesn't. I don't have RealTick and I'm hoping that Eric will support other platforms as he goes forward.
Second, I tried to use ESP and got nothing but an ad bar at the top of my screen initially. Turns out that ESP doesn't like my dual-monitor setup. The trick is to catch it just as it starts up and right-click on the bar IMMEDIATELY after it starts up. Then select, "Preferences..." and click on the button to place ESP on the left sider of your screen. Then the "Alert" bar shows up.
I hope this helps.