Carbide Motion can be downloaded from the Carbide Motion Download Page.
Please note that upgrading to Carbide Motion V6 from prior versions will require you to go through the new machine setup wizard. You can read more about that here.
Carbide Create can be downloaded from the Carbide Create Download Page.
Carbide Create and Carbide Create Pro are the same download. Carbide Create Pro is unlocked by entering your license key. You can read more about Carbide Create Pro here.