where do you see the giberish? IN the browser? or in Dreamweaver? Can you provide a link.
For the positioning issue, edit the sitesculptor_css/content.css file.
change:
#outerWrapper {
margin: 20 auto 0 auto; /* Sets the margin properties for an element using shorthand notation (top, right, bottom, left) */
to:
#outerWrapper {
margin: 0 auto 0 auto; /* Sets the margin properties for an element using shorthand notation (top, right, bottom, left) */