Greetings,
First off,  as most others seem to agree,  excellent product. I have never anjoyed setting up router/firewall in my life.  Anyhow on to my question. My e-smith server has a relatively small HD,  about 1 gig or so.  Now my main development machine has all my file,  graphics etc. on it.  I would like to be able to ftp into my main machine from work.  I assume this requires opening up a port on the e-smith box.  How does one accomplish this?  
Thanks,  and a very merry christmas,
Steve