I have the bungee sex swing, ours came with a book so it showes about 8-10 postions, which you should be able to figure out on your own. We also added a few new ones as my wife is pretty flexable and likes girls, I am truly blessed in life.
my roomies and i had a thai spinfuck chair in college. we each used it for our respective chics. can't imagine what kind of goo covered that thing after two years of regular use
Hmmmmmm...that upside down part is interesting! I might have to look into getting a bungee swing myself.
We don't get very creative with positions in the swing, I'm just usually in it with my legs spread open or wrapped around my husband for intercourse. I do like to receive oral in the swing and it's great when he adds a toy or two as well. It's also great for the guy to get in the swing to receive oral. If you're into threesomes, having an extra set of hands workin on your girl while she's in it is also pretty excellent. If your girl is sitting in the swing in a more upright position, she can grab ahold of your hips and she can fuck you while you either just stand there and enjoy it or you can be playing with her clit and tits. I haven't looked at the design of your swing, but you might also be able to be in the swing with her on top fucking you. I think the main thing with these swings is getting them adjusted to the right height for what ever position you're using it for. We've let other friends play in our swing and if the girl is in it and the guy is a few inches taller or shorter than my husband we have to set it differently for them. Sometimes when my husband is in the shower I'll set the swing up and start playing with myself with some toys so that when he comes into the bedroom I'm right there ready for him.