What do you mean "preventing..." Can you be more specific?

#main-content {
display: inline; /* fixes a strange ie margin bug */
float: left;
margin: 0 0 0 3px;
padding: 0;
width: 475px;
}

find this code & then decrease the 475px... that's what i did... worked for me... good luck

George, I meant my sidebar was down the bottom of the page, displayed after the posts, and not in line with them. But it looks like I sorted it!

Thanx anonymous, it actually worked!

;) at your service