Two releases in one day? Is it Christmas again ;)? Here is Resctoox v3.0 the only change in this release is that networking options can be specified in the append line, the format is as follows:

nettage:IP:NETMASK:GATEWAY

Or, if you want DHCP:

nettage:DHCP

(note that DHCP must be in capitals).

You can enjoy this release here.