The trailing arm looks like an elbow or arm pointing towards the front of the car. Look for an L shape laying on it's side. They are right next to the drum. After you raise the rear wheels, you will need to load up the rear wheel, (place a block of wood under it) in order to connect those bolts and bushings.
I took some photos, with the car down and they are kind of bright. It night time here and I couldn't turn off my flash. But you can kind of make out some details.
Just remember the connection that you are trying to make is in front of the rear strut, and the 90 degree angle connector is facing in towards the center of the car.
Right side
Left side
I hope these help, but like I'd said in the earlier post I should be able to find time and day light to raise the car up and remove the wheel so that you be able to get a better view.:smoka: