To set for 10 hosts, just get an ISP connection of about 5 mbps down, 1 mbps up.

Then set your connection speed to T3.

That will give you 12 hosts (14 in a LW Pro version).

There is not much point in getting more hosts if you have a slow pipe to the network.

As for the source code, just go to http://www.limewire.org/checkcode.shtml for now. The FW code should be available as soon as SourceForge finishes the changeover to Subversion. Or ask Ultracross.