Under the styles directory the files 1.php and 2.php would not allow me to change permissions. I got a message in my ftp client that said "550 could not change perms on 1.php. Operation not permitted".
I also went back and reuploaded the images directory but still no images show up in my forums.
Not all hosts enable the chmod feature in FTP, if this is the case for you then you'll have to do it via the command line.
