I'm not sure about the first one (at least I didn't see it when I quickly scanned the torrent site I use), but I know the other 3 are on here.
Check out http://tenyardtracker.com/
It's free and safe...you just need to sign up and register (and if you download more than 20GBs, keep an upload/download ratio of .30...which is very fair).
They are sure to have at least 3 of the 4 games you are looking for. The last one (since it is this years game) will have a ton of seeders still as well and go very quickly.
*Edit* I looked again a little more thoroughly and was only able to locate the '10 game and the '08 game. If you join up and search around in the requests section of their forums a little bit you might find some people who have them and will re-up them again for you (or send you the files even). It's a great site...if you don't mind downloading a few things, I highly recommend it.