This is Kev here... I managed to put it up once... I'll try to walk through it.
The thinner poles attach across the front of the awning
. This is the weird little pole with a slight bend, and the two longer ones with flat ends with holes.
The legs with the pins on top are what go into the holes on that thin bar (Three holes, three legs).
The last two legs, spring loaded if I recall, fit on the sides of the awning and are placed against the side of the trailer to provide tension to the awning.
The ropes are used to tie the three legs off and help support as well.
Hope that helps, it's about as good as I can recall