question concerning Category Icon Plugin

I am using the Category Icon Plugin on WordPress V 2.6

The instructions for assigning an icon to a category say, “In the dropdown menu icon or Small icon, select an icon among the ones you uploaded in the default folder (wp-content/uploads) or the folder you’ve choosen to upload them. And then click on the button to the right to validate.

Where is this “button to validate”? I don’t see it. I am doing something wrong. The icons have been assigned and I can see them showing in the Select Category Icons page beside each category name. But they are not showing on the actual view blog.