How to Update

I have purchased the demo and the full game from Sortitoutsi. I have the codes .

HOW do i update?

Steam does not do it automatically.

I've the same problem, bought it from Amazon so got Beta code and been playing for a couple of weeks.
Got boxed version yesterday put CD in and it asks me to Play, re-install or uninstall. Have tried the re-install and noting special happens.
Uninstalled and re-installed again but still running BETA, at no point have I been asked to input my Activation code??

Anyone any ideas??

Solved my own problem......