Hi, I'm the person who put the "Whoopass a Go-Go!" page on the wiki. That was the only animatic I was able to find on Youtube.
If anyone has the PPG Season 1 DVD which has "A Sticky Situation", the aformentioned "Whoopass a Go-Go", and the remaining two animatics "Monkey See, Doggie Doo" and "Monster Trouble", please let me know. Those remaining two animatics are serious Powerpuff history!