The news on Jessie is bittersweet. She seems to be stable and is sedated for pain. She only has one break, but it's in a very bad area so the word lame came up. At that point I think I panicked. They are letting her "chill", as they put it and rehydrating her, since she layed in the yard for a while before I heard her (and we had 105 heat index today). They are going to set it and splint it in the morning and see how she does. There isn't enough bone left by the break (part of it was shaved off) to pin it.
She will have to be an indoor cat for the next 6 - 8 weeks, if not for the rest of her life. I asked if she would ever be able to walk, and they said they hope she will. This is about to bring major changes to my family. I've never had an indoor cat, as I'm terribly allergic (and I think both boys are as well) and my DH and I both work full time out of the house, although I occasionally work from home. I guess I'm going to work from home for a few days, take my mom up on her offer to help, and possibly take Jessie to work with me.
Even though I know it was an accident, I'm having a hard time with it.
Thanks, everyone, for your good thoughts and prayers. It means a lot!