vB4 how do you position forums in container and fixed width (see examples)

[محروم.كوم]

How do you style forum position like in the following examples:

http://www.goaliecrease.net/forum.php

http://indigosociety.com/
http://www.lirenti.com/forum.php

also how do you make those widgets on the right that makes the forum expand when you close them? __DEFINE_LIKE_SHARE__