After long back and forth between forums (http://en.forums.wordpress.com/topic.php?id=11522&page&replies=7) and Feedback:
Hi, It may well be css related but skills in that area are very poor indeed. A post to the css forum might help? - Mark
My Blogs' image header can be seen in Every Browser known to man except Internet Explorer, and here is the proof: http://browsershots.org/website/http://theinnercircle.wordpress.com/#success
Does WordPress see the urgency of solving this?