1. take the boot animation make sure it is named bootanimation.zip and copy it to your SD card
2. then open root explore and mount R/W and then navigate to the file and press on file till the menu comes up and select copy
3. then navigate to data/local and paste the file in the local directory
and you are done, this can be done with the android_audio.mp3 file as well just paste it to the same place.
just thought this would make it easier for people instead of using adb shell
credit goes to yojoe600