how i can make outer/emboss in forum like vbulletin

[geevest.com]

how i can make outer/emboss in forum like vbulletin?

http://www.juiceshare.com/images/slvs6598rxio2p96zgn7.gif (http://www.juiceshare.com/)

[Princeton]

just add a background image to body

this has been mentioned a few times here - if you do a search you will find a few more detailed posts

[geevest.com]

i dont know about the keyword for searching.need ur help.
thanks