Grazie a Stephan we got over this problem .We were going to give up once the owner of the $DocumentRoot was apache owner and permissions were regular defaults 755 644.We had a look to apache logs and found the b.... :
[Thu Nov 2 17:22:07 2006] [error] [client 188.8.131.52] Directory index forbidden by rule: /usr/share/images/
We had just to change the alias /images/ /usr/share/images to alias /img/ /usr/share/images/ so apache could find images and bosh ... images! http://tor.gabrix.ath.cx
Thanks a lot you are great !
i explained badly , sorry !