Diameter issue for main forum.

[obglobal.net]

I'd just like to get some advice on this in case I make some sort of enormous blunder.

You can see in the picture below, that I have an empty white space on the right hand side of my forum:



I want to know what Stylevar/ X's and Y's I should use to move ONLY the right side of the forum toward the right.

I made a mess of things once when trying to align my forum as I liked it, and thought I'd ask the VB crew before I jumped out of the frying pan.

Thanks a lot.

OBG.

--------------- Added [DATE]1378561870[/DATE] at [TIME]1378561870[/TIME] ---------------

And I meant parameter, not diameter.