That's because the current projects is in another directory, Like i said in the other post about relative paths, it's no longer got the correct path to the style sheet.

change
<link href="style.css" rel="stylesheet" type="text/css" />to
<link href="../style.css" rel="stylesheet" type="text/css" />in the currentprojects/index.html page

Then read up on relative paths!  

Ok so do the above step first of all.

Then open style.css, change
#header {
     width:750px;
     height:341px;
     margin-left:25px;
     background-image:url(images/header.jpg);
     display:block;
}to
#headerhome {
     width:750px;
     height:341px;
     margin-left:25px;
     background-image:url(images/header.jpg);
     display:block;
}
#headercp {
     width:750px;
     height:341px;
     margin-left:25px;
     background-image:url(images/headercp.jpg);
     display:block;
}now open the site home page, change
id="header"to
id="headerhome"
and open the current projects page and change
id="header"to
id="headercp"
Now the home page's header id will follow headerhome to find header.gif and in the current projects page, the header id headercp will follow to find the image headercp.gif which your about to create and upload.