Help Help Help

Help Help Help

Admittly i am a complete amature. Ive spent 3 days on this but i am clueless, and i havnt a clue about the code so i am even more.
 
Im after a simple image slider box that will sit as a feature in a div on my site.
 
I have built one using wow slider, viewable at mhbglobal.com/roller/index.html.
I am very happy with the way it looks so far.
 
But to finish it i want to have a navagation bar attached to the left hand side that changes into an arrow as it moves up and down.
 
See mhbglobal.com/lay2.png as the position and arrow style.

So basicly,

How can i incorporate the arrow menu on the left into my existing slider?

Any advice and any pointers would be fantasic!
Regards!