Here ya go
http://www.discoveryowners.com/DayNightCompile.pdf
Sorry about no link,you will need to cut and paste.When you get the site up,scroll way down.The 4 string,2 spring instructions are there.
( I found this with a Google search,"restringing motorhome shades")
It isn't all that dificult after the first time.Good Luck.
'04 33.5 CKQG Hitchhiker Discover America
04.5 Dodge 3500 CTD SRW
Pac Brake,Max Brake
Fulltimers since '06