Do you just install zip from sd in cloclwork recovery. Cause that didn't work for me.
Just mount your droid to your PC and place the bootanimation.zip file at the root of your sdcard. Then using root explorer navigate to your sdcard, long press on the bootanimation.zip file until a popup menu appears. Select "Move" or "Copy". Once you select one, "Paste" and "Cancel" buttons will appear near the bottom of your screen. Now, press the back button to move to the root of your file system. Then navigate to data/local/ and then press "Paste". You'll be prompted to overwrite the existing bootanimation.zip. Press "OK". Then reboot.
There's also a way to do this through terminal emulator, but this is the simplest way.