Tks bro! How do I install a Kernel? You can help me?
First I'll try to reinstall everything... I am using Samsung's Android 2.3.6 and I'll try to upgrade to the CM9 again.
But, how is your battery? It's about how time? (with and withou music/3g/wifi)
To install the kernel just download it and flash it via recovery, as you do with the ROM. Then you'll have the kernel options in the Settings menu.
I don't know exactly how long the battery lasts because is my girlfriend's phone and i don't have it here right now. Anyway, she uses it a lot and says it's ok, just like the stock ROM.