Hi there. I don't have much helpful advice, but was (and still am) in the same boat. My daughter was tested in late May and her CIX was 153. I am looking in to having her tested with WISC in the hopes that it will provide more "real" numbers.
I know exactly what you mean about wondering what the scores mean for the future. I fought so hard to get her tested by the school, and when we finally got the results (RIAS) I immediately went from the sense of "I was right! I knew she was different!" to "whoa! What does this mean for her life and parenting her?"
