I not sure what you mean by effect your d/l, but you do have to configure your firewall for both TCP & UDP access for LimeWire. That gives LimeWire full access to the internet connection.

If you don't have the firewall configured properly, it will effect how LimeWire connects or tries to connect.

Waiting in line position 1, basicly means that you are connected to a host and qued to be the next one to receive the u/l from that host. Translating to your d/l.

Your chances are good provided you check a few things. Make sure you check the file size. An average movie will be about 700 MB give or take, it may also be in more than one part depending on the movie.

I hope your using LimeWire as that is what I based my response, as you really didn't provide any information.