You can't load from a save. You need to select a mission from the campaign menu.
The version is displayed in the main menu, lower-left corner, under the "version 1.x" label.
Is it a retail or pirated copy? You should have a key for the game on ubi.com, a piece of paper stuck under the disc. If not, it's a pirated copy.
Also, check the thread about "campaign 2, mission 1" or something like that; someone had the same problem, and I explained the solution to him, which is similar to what I'm telling you now.