[SOLVED] Inserting a photo image in a sidebar

Hello please help....I am following instructions I have seen on a thread here from Admin but I seem to be getting no where. I have put the following code in the Add html/css inserts....is that right?

td#left {
background: url(/wp-content/themes/atahaulpa/images/capatilist mice (1512 x 811)(2).jpg);
}


I also have that in the style and configure sidebars. Where am I going wrong? I know it recognises the image as it is in my header but I am lost after many variations..

Thank you...