Your pages are attempting to link to a CSS and a JS file in a root level folder named SpryAssets/.
<link href="/SpryAssets/SpryMenuBarHorizontal.css" rel="stylesheet" type="text/css" />
That folder and the 2 files are not there.
I think your root folder is nea/
What Ken has said also applied to
which look for the JPG in http://davidcoshdesign.com/assets/images/Lights/lights_select.jpg rather than http://davidcoshdesign.com/nea/assets/images/Lights/lights_select.jpg