Lucy and I tried to connect AVP Gold Edition yesterday via GameRanger but to no avail. When one of us would create the server, the other person would be taken to the game parameters screen instead of joining the other person's game. Lucy and I live in two totally different countries but, given what I think GameRanger's goal is, it shouldn't matter. Would be interested in testing this with someone else--though finding someone with both legit Gold Edition and GameRanger has proven quite a struggle.
Yes, country doesn't matter at all. That doesn't sound right.. I'll investigate that further..
Edit: Ouch, I think I've found the bug. It looks like it's passing the server command-line to joiners, which would explain what you're seeing.
Edit2: Well that is quite depressing.
It looks like I made the breaking-change in January 2007, which is before the PC version was even released November 2008. Which means it wouldn't have ever worked for anyone on GameRanger.
Out of more than a hundred games that used DirectPlay lobby launching, AvP Gold was the only one that required a different command-line for joining than for hosting, which is why it slipped through. It did originally work before that change, but no one else saw that.
I'll prepare an update for that now.
Edit3: Done. It should work now. Give it another try and let me know if it works for you.