alignment help needed

[iMage]

im wondering with those solutions not working if its in the main css instead?..

im thinking its something maybe in this bit of the css,the tableback1 is teh bg bit there

background:url('images/tableback1.gif') top center;
float:left;
display:block;
margin:0 0 0 0}
.blockdiv h4{
text-align:center;
font-size:95%;
position:relative;