Check page 12 of the manual, where it talks about placement of buildings. There is nothing about the tooltips when placing and checking buildings for things such has happyness, and what the smiley icons stand for. Actually had to find it out via the Lionhead forums.
It's pretty sad that Peter and Lionhead go out of their way to 'fix' the problems of the first game but royally fuck up... again.
Problem 1) Telling people the patch was going to be out on the 6th, possibly sooner on their web page. Lionhead and Dates don't mix.
Problem 2) The added a patch to skip all the shitty tutorial crap in the first game, but yet didn't included it in the second game. It had to be patched in, and even then you STILL have to go through the vast majority of the tutorials again.
Problem 3)Extremly Lackluster information, and missing information from the manual/tutorial/game.
Problem 4) Really left out the 'soul' from the first game and turned it into a RTS game, instead of a god game.
On the good side is the creatures are alot more independant, but at the same time can be made mindless uber units.
As for the patch, it does delete your saved games, as noted in the patch notes BEFORE you install it that your saved games are not compatible with the patch, hence you must restart.