Probably find using <center> content </center> would work....
--------------- Added [DATE]1293598228[/DATE] at [TIME]1293598228[/TIME] ---------------
Also
PHP Code:
[COLOR="Red"]<div align="center">[/COLOR] <a name="top" href="{vb:raw vboptions.forumhome}.php{vb:raw session.sessionurl_q}" class="logo-image"><img src="{vb:stylevar titleimage}" alt="{vb:rawphrase x_powered_by_vbulletin, {vb:raw vboptions.bbtitle}}" /></a></div>