all the comics are listed but the graphic is always "comic is not available" what have I missed?

when i chmod pmTemp/phpcomic dir to 777 it downloads the image but when i try to display it it just shows the link "http://www.zora...phpcomic&;func=viewimage&f=comic92.png" width="550" height="679" alt="Hell Sweet Hell" border="0" hspace="0" vspace="0"> "