Center Blocks different from forum post blocks

[londonhogfan]

Don't know how else to explain it...

How can I make center blocks 100% width but pick a size for the forum posts.  Seems Like I have done it before but can't find the template now.  Can anyone help?

This is for the frontpage.  I have most recent topics from my "news" section loading below the centerblocks.  I just want the background to show while having my centerblock going all the way from left block to right block.

[stormlrd]

Frontpage settings maybe?

[londonhogfan]

sorry.  I was bad at explaining what I wanted.

I found it in the TPortal.template.php