Gopher exploit question

I was offline for a week or so and came back home with a warning about the gopher exploit via all versions of IE. I used the workaround listed here http://www.solutions.fi/index.cgi/ne...06_04?lang=eng
aka sending all gopher traffic to port 1 of my localhost and it works fine...

As I am curious of nature, I wanted to know if there are assigned ports for Gopher on servers? The test page sends me to port 7000 but that is not listed anywhere are a gopher port?!?! Can gopher be set on any port on a server? If not so, I could create a rule in Agnitum Outpost to block all traffic in IE of gopher ports... The only port listed as Gopher in Outpost is port 70...

If anyone has a clue, I am hungry for knowledge...

Thanks,