p3scan with PF --> Target IP PROBLEM!!

[alternico]

Hi, I'm Nicola from Italy...
I installed on my freebsd 6.2, P3Scan 2.3.2
It works properly only if specific manually and statically:
targetip = IP address MY PROVIDER
targetport = 110
Although I created the rule firewall PF:
rdr on rl0 proto tcp from rl0:network to any port 110 -> 127.0.0.1
port 8110
does not work ...
Output p3scan in debug mode:
-------

Server p3scan[513]: Connection from 10.0.0.2:60938
Server p3scan[513]: Real-server adress is 0.0.0.0

Server p3scan[513]: Cannot connect to real-server

-------

or, on another machine

-------

Server p3scan[513]: Connection from 10.0.0.2:60938
Server p3scan[513]: Real-server adress is 10.0.0.1

Server p3scan[513]: Oops, that would loop! ... -------
Can you help?
THANKS

Nicola