Im not sure what you mean by "engine" but i think you are refering to the way you place bets (trades). It is very similar to placing a Forex trade except that its not done in lots, its done by £ per pip. With E*Trade and IG Index you just sign in to the website and its all there for you. They even have their own charting software (mostly java) but they are pretty basic, I use MetaTrader as its free. Orders and stops can be placed in exactly the same way and the choices of what order type you can use will depend on which broker you use.
Personally I have found IG Index works for me as they have a nifty peice of software that sits on your cell phone, pics of screen shots can be found on my thread as shown a couple of posts back.
Hope that helps
Lyndon
Personally I have found IG Index works for me as they have a nifty peice of software that sits on your cell phone, pics of screen shots can be found on my thread as shown a couple of posts back.
Hope that helps
Lyndon