I'm trying to vertically center my webpage: www.CountryScribbler.com I'm using VSD so I obviously don't know much about code. Any help that can be offered will be greatly appreciated.

Welcome to the forum Tim

Go to the page tab and tick the center design box halfway down the window. You will soon be an expert and are welcomed to join in the conversations here

Hi Prism, and thanks for the response. I have the "center" box checked and the webpage is centered horizontally but not vertically, which is what I want. If you care to see, here's the link, www.CountryScribbler.com

VSD can't dynamically fill the length of the page. You design the page and set the page length to what looks good to you on the page properties box. Click "Page" at the top of the design screen and the properties box will open to the right.

Tom, If you use an image for your page background (Page Properties > Page Background) you'll have a choice how you want it positioned.
For your actual page, make it in a graphics program to the size you need, save for web (.jpeg or .png) then insert as a background image, check the Position box (under the Background choices) and choose Centered in the drop-down list.