She's getting older - you need to put her to bed later....naps during the day, etc.
I didn't really do the CIO method in my home, we wanted our children to be self-sufficient (sucking thumb, playing, etc.) however, I wanted my children to know that when they NEEDED something, i would be there. PERIOD.
this worked in my home, not what you are doing in yours. In my opinion, her bedtime needs to be later if you don't want to wake up at o-dark-thirty...my boys at 7 months were going to be at 9PM and sleeping until AT LEAST 7 AM...my daughter was in bed at 9PM and didn't wake up until 9AM - she was and still is (at the age of 25) a person who needs 12 hours of sleep!! URGH!!!
Hope this helps!