chawla@moviesandgamesonli
For 4.2 there is a seperate forum since it uses quite different template system.
You need to change width of #page-container from 780 px to somethin' else (900px, 90% or any other value)
in your main.css
but there is also some other custom work required since the bar with authform at the top and possibly some other elements has a fixed width.