It seems difficult to find a substantial Version of the Cerulean Studios Logo.

Here for example is a minute offering from Wiki

http://en.wikipedia.org/wiki/File:Cerulean_Studios_Logo.png

Both these URLs use the Logo requested above.

http://www.ceruleanstudios.com/downloads/downloads.php?t=s

http://blog.ceruleanstudios.com/

If one enters ceruleanstudios.com in the address bar it will transmogrify into

http://www.trillian.im/