Center web page in Dreamweaver

Ok, so here goes.
I have created a custom web design in Adobe Photoshop using 1680 x 1050 resolution.
I used this resolution because it is my default screen res.
I've imported my sliced design into Dreamweaver but i can't figure out how to center my page so there is no horizontal scroll bar when i upload my page to the web.
Any links to online tutorials would be greatly appreciated.
Or if possible some example code would be a great time saver.
I am decent at working my way around different apps but this particular issue has been causing me a problem for weeks now and I have a deadline to meet.
Thanks in advance for any help you can provide.

Web designers never create web pages in sizes exceeding 1024. Preferably, like this site you set your default table width at 800, so nobody ever gets a scroll bar. Start with a table 800 or 1024 pixels wide and design within it. Hope that helps

It doesn't.
I am well aware of how it "should" be done.
I was asking for technical assistance on something in which I know is possible, though I personally don't know how to achieve.

Please don't respond unless you can give the type of answer that I'm looking for.
Thanks.