This was changed because some bugs in this area. The Gnutella protocol requires IPs to be send. To allow domain names this would mean that the IP needs to be resolved.
Unfortunatly there need to be alot code changes done to reintegrate this. Also I'm very shortly befor doing the 0.7.3 release, I hope you can wait a little longer before I can reintegrate the domain name.

A workaround would be to either find out your current IP every time or to switch back to 0.7.1. This is safely possible from 0.7.2. Both solutions sound not very thrilling, I know...

Gregor

__________________