Selenium web test

Hi,

I'm trying to do some QA tests with Selenium onto my FCKEditor form.
FCKEditor help me to add some pictures into a field. So, i've to clic onto image button.
Selenium IDE isn't able to record button clic. My test waits and waits popup which is never coming because Selenium doesn't clic onto button

Have you already tested FCKEditor with Selenium ? How do you clic onto toolbars buttons ?

Thanks for help.