Help

hi
my name is Tomer,im using R version 1.4
i've encontered a couple of problems with my my R programing.
1. i cant understand what is the whights in the nnet$wts command(which 
weight fit to the nodes).
2.my OS is Windows XP , i want to operate R from the command line and i want 
it to operate a file automaticly(the commands written in a text file) ,is it 
possible?( i know that in unix it is),How can i do it.
thanks in advance.
Tomer