I have an 06 Aspect and have re done both day nights. The WIT guide below was the most helpful in restringing. http://www.winnebagoind.com/resources/service/pdfs/2006-09%20Restringing%20Day%20Night%20Blinds.pdf
I found, as others have mentioned, jagged burrs from the holes drilled in the alum bars and misplaced plastic bushings. I deburred the holes and glued the bushings in place.
I bought a kit but all I used out of it was the string. Next time I would just get a bunch of string. To make it easier to thread, I stiffened about 3 inches of string with thin crazy glue (same glue I used on the bushings).
Take pictures as you disassemble or mark things so you know which way they go back.
Norm
Removing the side valances was easy and made it easier to work. The shade was held in place with 2 screws and a clip. The screws were hidden in the folds. A small hand mirror made them easier to find.