I got Entrenchment a while ago.  I only played it once, then I took a break from Sins for a while.  A couple of weeks ago I decided to pick it back up again, but only the first one.  A couple of friends have Sins, but not Entrenchment, so I normally just play the first pack.  Today I went to play Entrenchment, and I have only 1 map to choose from.  Actually, I don't even get to choose it.  Its just there.  So I don't have any maps to choose from.

I figured I'd go download Entrenchment's updates, since it had been a while since I'd played.  I go to update the game in Impulse, but it tells me my registration for the product is invalid?  What's going on?  Can anyone help?