We can see the culprit in there too!
I'm in the middle of repairing the first of four old posts. I'm removing the old covering (carpet) and replacing it with sisal rope.
Long ago, I bookmarked a thread from here - it's what I used as the basis of my "renovation project". Perhaps it might help you.
http://www.catforum.com/forum/36-cat-chat/124064-sisal-rope-questions.html
I will be using a glue gun to attach the rope....or, at least that's the plan!
Sorry, no pics though.