Thanks for the replies so far. Their website does not provide instructions (I cased the entire thing), but I went back and looked anyway. Also, I tried contacting them using the contact form and the owner's email. I will definitely try to PM the owner if I don't hear back (or if I'm not able to figure it out on my own) by Monday.

keystoneben - thanks. I have tried doing that what seems like over 100 times. The problem is that there is no way to get the loops to stay in place/secured before placing the other end of the sling through. The end that has the slits is what I am referring to. You have to secure it somehow so the loops stay in place. It doesn't hold together otherwise. There's some trick to it.