How to Install Mo' Creatures into Feed the Beast

NOTE: I've created a new installation video for Mo'Creatures v4.6.0. Please click this link to see more well-detailed instructions: http://youtu.be/zj83-0Fg6WM

MAJOR NOTE: Make sure that Mo'Creatures, CustomMobSpawner, and GUIAPI are for Minecraft 1.4.6/.7, NOT 1.5 as it is not compatible with any FTB version yet.

VintageBeef wants more animals? How about this modpack?

I've been searching for a way to install Mo' Creatures on the Mindcrack FTB pack, but I was only able to get it to work at Version 6. But I've found out why it wasn't working and now it works for Version 8.0.1!

NOTE: Thanks to crazydan12345 to comment that using GUIAPI is not needed for servers and it may crash the server.

... https://www.youtube.com/watch?v=R06OdGOQ4Do