help with 3 column structure in wordpress....

hello,

im trying to get the wordpress blog here have the same column structure as the main site here eg left column 232px, right column 200px, center column 100%.

im not familiar with wordpress templating and so not sure how to tweak the relevant wordpress css which is:

.sidebar { width:170px; display:inline; font-size:11px; line-height:14px; min-height:500px; }
#sidebar-left { float:left; }
#sidebar-right { float:right;}
#side-center {
padding:0 25px;
margin:0 0 0 25px;
float:left; width:500px; min-height:700px; display:inline; border-left:solid 1px #eee; border-right:solid 1px #eee; }

any help much appreciated!

thanks!