OH, goodness - I think you need to get that bleeding stopped. Apply some pressure if it doens't freak her out, and get that blood flow stopped. YOu need to separate her from any others she may be in with - I use a dog kennel for this. They're pretty resilient, she'll probably do okay. Clean her up, and you may want to being a broad-spectrum antibiotic to make sure the wound doesn't get infected. Then, you could add probiotics to her water - that will help give her immune system a boost to help her heal. Depending how badly it's broken, you MAY need to feed her via syringe - make a slurry of her feed, mixed with water; you can do this in a blender, blending it for a long time to make sure all the bits are blended. You can get a syringe from your local drug store; you may need to clip the end of the syringe off a bit in order to be able to suck up the slurry and then CAREFULLY try to pry her mouth open just a bit in order to get some food in. YOu don't want her to become dehydrated or to not be able to eat.
BEST of luck - just some starter ideas for you! If you could post a picture, that would be most helpful!