And your question was?
12:38:30 Error:  "Not Found" (404) at link
www.tryit4less.com/graphics/close.png (from www.tryit4less.com/highslide.css)

highside.css contains:
background: url(graphics/close.png);

and opening www.tryit4less.com/graphics/close.png in your browser returns
404.

Those are NOT HTT errors, those are errors on the site.