Try this in the template_css:
Find:
td.seperator {
background:transparent url(../images/sc_seperator_vert.png) repeat-y scroll center top;
Change to:
td.seperator {
background:transparent url(../images/sc_seperator_vert.png) repeat-y scroll left top;
Find:
div#left div.moduletable {
background:transparent url(../images/sc_seperator_horiz.png) repeat-x scroll 0%;
float:left;
margin:10px 5px 5px; <---Change bold number to 3px
padding-top:10px;
width:175px;