browser icon and website tagline/title

[MIRKO]

how can i change the icon which is appearing on the browser address? like the default icon of the Vbulletin and the website tagline / title which is "Powered by Vbulletin"

Thank You

[boneedd]

Answer of removing "Powered by Vbulletin" is here not sure how to add image

http://www.vbulletin.com/forum/showthread.php?t=307713