For ringtones place a mp3 in the \windows\rings folder.
For the other tones place the mp3 in the \windows or \windows\rings folder..
Different roms read them from different places.. One should work.
Then go into settings and select from the sounds and notifications menu. Its in there.
For battery life make sure that you have the device to sleep when not in use..that will save battery life. Under settings\battery.
And for the blue light I believe that is the led for bluetooth if Im not mistaken.. no2chem made an app to change and\or shut off all leds
Download that here..
http://www.weienterprises.com/nue/nueled.html
Make sure you download the cab file.. transfer to phone and tap on it in file explorer.