I opened Impulse to buy Demigod today (downloading now) and it told me I had an update for vanilla. Well, the update was v1.16 (which I got last week). And it said my current version was 1.05. Now, the update dates for vanilla and entrenchment were 4/22/09 and 3/19/09 respectively, which are the dates I updated to 1.16 and bought entrenchment for a friend, again, respectively. After installing the update, the vanilla update date has not changed.
Seems to be working . . . just thought I'd pass it on.
(ps the download server is spitting lots of internal errors)