I just had my blog lotterymoments.com transferred from Dreamhost to Hostgator and everything seemed fine. However, I wanted a new theme, not the default WordPress theme. So I tried to install some themes, starting with PressRow. Everything about the theme seems to install without a glitch, except for the header image. I can't ever get any image for the current theme preview. However, in Themes I can still see the image of the WordPress Default theme and the Classic WordPress theme. Does anyone have any idea why I'm not getting a header image or an image of the front page in Themes?