How to show acvtive users from non - VB pages?

[xBhp]

i did what u said and it seemed to work, but i got this error: "Unable to add cookies, header already sent.
File: /home2/xbhp1/public_html/posts.php
Line: 3"

but when i cleared cookies the page showed up fine. if i add this code to every page it wont be possible to tell the non tech savvy users to clear the cookiea and relogin to hget rid of this unfreindly message.