Basic css selector question

Basic css selector question

Hi!
i am trying to send a click event to this image.I got the css selector from firebug,but i cant figure out how to use it in jqury format. [     $('selector).click()      ]

  1. #navbox > table:nth-child(1) > tbody:nth-child(1) > tr:nth-child(2) > td:nth-child(1) > img:nth-child(1)
Sorry for sounding ignorant this is my first week on jquery.
Thanks in advance.