Hi,
I am new to replying and read your post and felt compelled to write...our son is now 30 months old and I struggled with the same early morning wakings for a couple of VERY long months before I tried the "wake to sleep" strategy that Tracy talks about in her latest book, I think it is also somewhere in this sleeping issue section. Basically, you would go in about an hour before she wakes, just change her diaper quietly and then as she is half-awake, put her back in her crib and let her know it is too early to wake up...I think Tarcy suggested doing this for three nights, and then hopefully you will have broken her early waking routine...hope this helps, keep us posted!!