How did Question About http://www.facebook.com/AcaiBerryDiet ? get their own URL structure. Everytime I create a page it adds /pages/ to it? Also what application are they using. If you click on the Acai Berry link on the left. You will see they are using some type of application. Where they are able to create an HTML page?
Facebook lets you set a "vanity" URL for one fan page per account, this was launched in 2009. HTML in fan pages is also pretty standard... http://tinyurl.com/3m8x7dx