I found that in spc.php script the generated code has the same id in div elements for some reason
http://adworks.pixelworks.gr/www/delivery/spc-original.php?zones=1%7C2%7C3%7C4%7C5%7C6%7C7%7C8%7C14%7C15%7C11%7C12%7C13%7C16%7C31%7C32%7C33%7C34&source=&r=66422468&charset=ISO-8859-7&loc=http%3A//www.farmakeutikoskosmos.gr/katanalotis
So, the Flash Object replace the content of <div> of zone 5 with the code of zone 14, because they have the same id.
I think that I found the bug in www/delivery/spc.php in line 3335:
$rnd = md5(microtime());
replace with:
$rnd = md5(microtime()* rand(1,1000));
Costis