No, it does'nt. However, if i connect my workstation directly to the internet, bypassing the router, then i can get active mode to work. I have maped port 20 and 21 to my local IP address in the router, so i don't know why it won't work when the router is in between. So it seems that problem is not on the server side, but on my workstation side.
Regarding the disconnection problem i mentioned, i have figured out what caused that problem. It was the firewall in Vista that made my client disconnect frequently when large amounts of files were deleted, renamed and/or chmod'ed. If i disable the firewall on vista it works fine. And i really don't need that firewall since i am behind a router. But would be nice to figure out why the Vista firewall causes this behavior.