For which Trainz are the West Coast Trains AddOns?

[StandYourGround]

I saw a few screenshots here in the forum, which showing Union Pacific locomotives. A user has written that the locos are from sporbust.com (West Coast Traines).
So I think they are pretty cool and now I want to buy the right Trainz to use these addons, but which is the right? TS2009?

Please help me.

Sorry for my bad English, I'm from Germany.:wave:

 

[gary6204]

i believe they were created for 2006, but they work just fine in 09 and 10.