I agree with Satori. In my experience, if a parent really wants to be involved in their child's learning experience at school, you really really have to push - insist on meeting with teachers, etc. Insist on seeing files/past testing.
Insist on sitting down with a teacher to find out what they are doing with your daughter, where she is right now, where she needs to be, and how you can both work together to make sure she gets there.
I think you just have to be a pushy parent - and that's OK. It's what's best for your child...hang in there. I know it can be frustrating.