Use a program like Proxomitron
http://www.proxomitron.org/
to filter them; it works quite well.

Quote:

it's bad enough to have porn on the gnutella network.

'Bad' is a relative term; I'm sure that most males, aged 18-45 are quite happy about it ;-) Of course, you could always suggest that Phex incorporate an (optional) adult content filter; the Gnutella program Xolox had one; their website is http://www.xolox.nl but they've stopped updating it because of lawsuit fears.

According to http://www.geeknews.net/print.php?sid=593 the Xolox team is considering releasing their source code; if they do and you ask nicely, I'm sure the Phex authors might consider adding that feature