Ralph has asked if I could send some pics of the screen.  I'm going to post
links for everyone to view as I've seen other's scratching their heads
trying to figure out how to install these & it may provide some help.  Keep
in mind that I have a Riviera and the layout is different than the Westy.
I found that the screen was a bit too wide, so I had a seamstress fold the
vinyl over on the leading edge(the edge nearest the front of the van) and
stitch it to the mesh.  Near the top I had her fold the top over in a funky
way and stitch it to help it mold around the door track intrusion a bit
better.  I put a couple of pics of that stitching in with the group.  Your
mileage may vary.

Hope this helps!

https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2393.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2394.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2395.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2396.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2397.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2398.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2399.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2400.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2401.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2402.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2403.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2404.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2405.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2406.JPG
https://dl.dropboxusercontent.com/u/4930890/VanagonSlidingDoorScreen/IMG_2407.JPG

--
Brett in Portland, OR
"Albert" '82 VanaFox I4 Riviera