I know issues like this are a pain but thanks for sharing. I will pick our new 2011 Berkshire MH up first week of June and will file your experience away for future reference. We all learn from our shared experience. Glad you got it figured out.
You also need the part that gets installed on the wall.
I do need to double check the manufacture of the topper. I know for a fact my awning is Carefree of Colorado. I'm not 100% sure of the topper manufacture. I thought it was also Carefree but an earlier post said we had Dometic.