Flash sockets don't transport HTTP requests. You might be able to tunnel them through WebSockets, but that'd turn the "helper server" into what would amount to an open network proxy -- it'd be trivial to abuse.
It's kind of a moot point, though; I doubt that the networking servers that these games depended on are still online. That's a whole separate preservation problem.
It's kind of a moot point, though; I doubt that the networking servers that these games depended on are still online. That's a whole separate preservation problem.