skybird100000, no problem.
Here are two pics showing how she hangs:
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She's definitely hanging, because I can lift her feet off the ground, and her torso will be in the same position.
I've only positioned the hanging bracket in such a way, that her feet/shoes realistically touch the floor, but there's basically no weight resting on them.
This gives the illusion that she's standing.
She's hanging by a clip on the hanging bracket, the chain is only there as a safety precaution, if the bracket would slide down, or the hook would break, Kayla wouldn't go face down to the floor, but would still be hanging on the chain from the top of the stand.
Here's a picture of just the hanging bracket:

The stand would work for all dolls with a neck bolt.
Guitar Boy, if the wheels are positioned properly, the stand is pretty stable. I could push it over, if I wanted, but it won't tip over lightly. Especially with the weight of the doll holding it down.
Thing is, I'm real handy with a computer, but I'm a noob when it comes to tools and creating things out of nothing, like doll stands, so I'm forced to buy them. I admire you guys who're able to build your own.