gfmt and editing of system files

[David Epstein]

I just installed Leopard (was on Tiger).
Then I did
sudo port selfupdate
which succeeded.

I also did some cleaning up, in the course of which I lost gfmt that I  
use all the time.

Q1. The puzzle for me is: how do I find out which port in Macports  
contains gfmt?

Q2. Which system files am I supposed to edit at this point? For  
example 'man port' no longer finds 'port', so I suppose the search  
path for man is not including /opt/local/man

Q3. Is there an info file for port? I can't find any.

Thanks
David Epstein