Here's how the wires should go for
a normal cable
(Both ends are the same.)
Note: This is looking at the wires with the connector upward and the tab
in the back
Orange    Orange    Green    Blue    Blue    Green    Brown    Brown 
Stripe              Stripe           Stripe           Stripe 
  |         |          |       |       |       |         |        | 
  |         |          |       |       |       |         |        | 
  |         |          |       |       |       |         |        | 
Here's how the wires should go for
a cross-over cable
(One end like is this, and one end is as above.)
(Note that the Orange and Green wires are reversed, or crossed.)
Green     Green     Orange   Blue    Blue    Orange   Brown    Brown 
Stripe              Stripe           Stripe           Stripe 
  |         |          |       |       |       |         |        | 
  |         |          |       |       |       |         |        | 
  |         |          |       |       |       |         |        |