I'm sorry for posting this but I must be completely insane and I'm probably the only one who can't find this, but......Where the heck can I find the PC patch for this game?? I can't find it anywhere in the site...Can someone point me in the right direction....??

How many patches there are? I counted 3 in the cult of rapture site. Do I need all 3 patches or only the last one?

Thanks in advance