Calling An Expert...

Anyone out there (who reads this) read HTML well?  I used to be a bit more up on it but I'm out of practice.  I'd like to modify my current layout to take advantage of a wider right margin...but cannot quite find where that is in the code.  I will be happy to e-mail it to you if you think you might be able to help.  And I'll send you some cookies or something equally yummy as payment, promise!  Any takers???