Help Categories are not working

hi

Please help me. the categories on the left the frist 3 are not working, But they do work on the top bar.

www.flowcentre.co.uk

Thank you
Mark

in your ftp, search this file:
catalog/view/theme/crista_grey/stylesheet/stylesheet.css

find this code:

#column-left {
float: left;
width: 180px;}

REPLACE THIS WITH:

#column-left {
float: left;
width: 180px;
position: relative;
z-index: 99; }

And surely, it works..

Thank You for your help. All up and running now thanks