I just did a quick search for a setup video for that critter... and drew blanks!
But here's what I remember...
First: use that supplied "hook" to unroll it from the RV. You need to bring it out far enough to be able to tackle getting the struts out of the rear of it...
As I recall: you slide them out to the left and right until you can get them twisted around and pointed in the right direction. Extend them out, and hook them to their mooring locations.
Now... getting those buggers out in the first place...
I seem to recall having to pick them up a bit at their outer ends so that they would slide out...
But my memory isn't any better than my looks.
If you can take a picture of that outer assembly with the arms tucked-in: somebody in here can get you pointed in the right direction.