YOU MUST HAVE ROOT ACCESS. Will not work with Persano's Tweaks applied!!!!.
Enable WiFi. You will need it.
Available at the Play Store > Boot Animations ★ root
For a visual demonstration, check out my video here.
***Update*** I've tested about 30 different animations so far and all have worked on my KFHD7.
And....... if you go here, you can get the boot animation for cm10. Unzip to desktop, choose the size you want and grab the boot animation.zip within that size/layout folder.(I used 800 in the vertical folder) Copy it to your sdcard and navigate to it using the local interface in Boot Animation, choose install. Viola! CM10 boot animation on your KF.