Problem with background in IE, all other browser work excellent.... please help...i almost get fired

I have this problem with background in IE PC, all other browsers including Mac Safari work excellent.... please help...i almost get fired...

link is:

http://www.imageoneads.com/missiongallery/index.htm

Thanks so much

tran006开发者_Go百科

I checked it with the help of IE-Tester and it looked same in all versions IE starting from 5.5 to 8. Same was the result in other browsers too.