Chucky I understand your problem. This is why I suggested to Zee that he posts a little explanation about what new release,mod or mission is about and what can we expect to see in the game menu.I also had the same experience looking for something new in the game menu and feeling like I had screwed up my download when I fact no it 's just that I had no idea what to look for.Don't beat your head against the wall.
Of course when you make a new install of the game you have to go through the missions one by one. Sorry if I misled you but I thought you needed to know what was in the latest release.
Now Chucky stop lying down in your corner and just go to the blackboard and write 100 times" When I install TvsT I will look into the right game menu"
Cheers.