"can't open file './../i18n/pgadmin3.lng' (error 2: No such file or directory)"
This appears to be a bug from 2005, cf. http://pgadmin.org/archives/pgadmin-hackers/2005-05/msg00143.php. I guess you guys are not responsible for the MacPorts version. I am new to using MacPorts, and don't know how to contact the maintainer. I don't know if this is of any interest to you or not, but I typed it so I guess I will mail it. I sure wish the Mac ran Debian or something I knew something about. John Wenger