Hi again... There is something strange in my site..(may be this issue is discussed before I did not search for it.)Any kind of photo I put to my site (logo etc.) does not appear on Mozilla Firefox but in internet explorer!I don't know what is wrong here...
On the other hand,I can say that photo gallery is working but I can see the images when I click on "view the largest picture".It is written in the document that "The thumbnail and small sized images will be automatically generated" but in my site I couldn't see the thumbnails and small sized images. thanks for your responses! have a nice day...