Well right now you have a bare bones site with no islands or at least side bars. And only two posts
So the main table is set to 100%. So it just sizes it to fill the screen.
For now what you could do is just set the main table size to say 90 or 95%.
Control Panel ยป Display Options [+] General Options
Table Width: (all screens)
That will shrink the whole screen display. including the column in question
Then once you finish your site open it back up to 100% and hack some templates or styles, to customize it. Once you get the jist on how to navigate through the options available.
