cannot create a full width easy slider

Hi guys, loving the them and been able to sort most of the functions out, but i’m having difficulty in producing a full with easy slider. I’m just selecting to an an easy slider and selecting the featured (1500 x 430) as this is the biggest, my slides are 1500 x 430 and the slider displays as a boxed version (1030 x 295), my enfold settings are set to stretched, i just cannot work it out?

Two other quick questions, 1. how to i set a custom height for the slider images, ie 300px, every slide will be 300px so how can i make this work and:

Finally, on the demo, when the easy slider is displayed, there is no gap to the top of the slider, it sits right under the menu, on my easy slider there is a big gap, how can i fix this, thanks guys in advance… :-)
The website is: http://stinet.co.uk/bloxwichcomputercentre/