These are directly from EA's Sims website.
FOR WINDOWS XP
sims 3 pets plus comes with sims 3 but indvisuly you need sims 3 for all things
if you need the code for the game then you can go to the sims 3 website and they will tell you how to contact technical support.
The Sims 3 is a 'starter pack' that has all the basic things (fundamentals) you need to play the game but for The Sims 3 Generations, it is a expansion pack, which means it ony has new things to make your gameplay better and more fun, not the 'fundamentals' as stated above.
I only have sims 3 for iPhone (swell as sims 3 ambitions) but I don't think you can have kids in just sims 3. As for sims 3 ambitions, I think you need to bemarried first and after a couple of other 'romantic' things it will become an option.
no, you only need the sims 3 to play the sims 3 :D
Same things as in sims 2.
Yes you need the original Sims 2 and Sims 3 to play these games.
You need the sims 3 to play late night because Late night is the expansion pack for the sims 3. The sims 3 is the base game. To play Late Night you need the sims 3 base game first.
In Sims 2 you must have used a cheat or something, so you need to do that cheat on Sims 3.
Yes you will because the Sims Generations is a expansion pack so you will need to buy the Sims 3 to use it.
Yes.
You do not need the original sims 1 to play the sims 3 world adventures. You need to have the original sims 3 base game to be able to play world adventures.