You got that PC then? Here you go:
http://www.pcservicecall.co.uk/layou...-ea498ad604d1}
Basically looking from the front of the PC go to the back of the left hand side of the case, at the back of the PC you will find a black locking slider, slide this up and then push the left case panel back and pull it away from the case, very easy. Putting that wireless card in there?