Your site is running integramod 1.4.0 and phpbb 20.19 or 20 if you upgrade to 1.4.1 you will also update your phpbb to the latest version at the same time... there is a download available here to upgrade to 1.4.1 for 1.4.0 with a full guide on how to do it... you can find it [url=http]HERE[/url] :mr...
Sorry I kept the old logo code for that theme... you just need to rename the image to phpbb2_logo.gif and upload it to templates/christmas/images and you will be good to go..
As your site has a higher page portal blocks and there are large images on these pages sdaly it will always stretch the page out as the theme is only 75% wide...
I would suggest going for the christmas theme as it is a full width template...