Upgrade from 3.05 - 3.06 Multi DB

Hey guys

I was looking at upgrading Domain Mapping Upgrade from 3.05 - 3.06 Multi DB

My problem is easy

were do the files go

sunrise.php - /home/blogline/public_html/wp-content
I have to ask the 3.05 sunrise.php was 2.93Kb and the 3.06 sunrise.php 1.72kb

domain-mapping.php - /wp-content/mu-plugins
Classes Images Languages /wp-content/mu-plugins

I hope i am making sense please guys let use know if they are upgrade instructions.