I'm having a bit of an issue with the AutoFocus theme which is a child theme of Thematic. Autofocus has an alternate frontpage design where instead of what is shown now on my site (deadeyedesignny.com) it's 4 columns of 171px x 171px. The problem is the image used in the thumbnail is what is set as the featured image which also appears at the top of each individual post. So if I want to put in a 171x171 thumbnail it just stick that same image in the middle of the top of the page for the post.
Is there a way to just not show the featured image at all on the individual posts? I imagine I'd have to edit single.php to get this, but I'm not sure what to do and code really isn't my forté.