Sorry for the delay in getting them here, but the installers for 2.6.1 and 2.7 are up, and the links to the changelogs are in the descriptions for the downloads. If you can, post any questions over on the official dawnofwar.info forums. I'll check here occasionally, but you'll have more luck getting answers over there.
You will need to install 2.6.1 before 2.7 to make 2.7 work.