how can i download files from my friends who use limewire also?

Keep searching, or you need to use a few hosts the same in connections.

No way...

You can search for ages.

They need a static IP, to set up a static IP download the tool here:

http://www.no-ip.com/

The free version is enough.

But I would suggest you that you and your friends set up a ftp server (for privat downloads), its more reliable, safer and you can be sure that you have the full bandwidth of your friend.

Here you can download a ftp server:

www.tucows.com

Morgwen