Internet Explorer does not show images ?

I have the following problem, my Internet Explorer (Version: 6.0.2600.0000.xpclnt_qfe.021108-2107, Cipher Strength: 128-Bit, Updates: Q810847, 3283, Q330994 & Q824145) does NOT show some particular images on my site (www.fiat.web.tr), but everyone else can view those images (strange !).
Here are the links of some screenshots I took to make the problem a little more obvious. http://www.fiat.web.tr/nuketurk/site01.gif , http://www.fiat.web.tr/nuketurk/site02.gif , http://www.fiat.web.tr/nuketurk/site03.gif ,
http://www.fiat.web.tr/nuketurk/site04.gif I have tried anything from deleting my history, deleting all cookies and reseting my Explorer settings.