The network file for ALCOVE should specify the number of nodes 
at each layer, and then the positions of all the hidden nodes.
The file begins with:

 num_in
 num_hid
 num_out

then for each hidden node (conventionally on one line): 

 val1  val2 ... valN

 where valI is value of node on Ith input dimension, 
and N=num_in.  Here's an example:
--------------------------------------------------------------
 2 4 2
  0.0  0.0
  0.0  1.0
  1.0  0.0
  1.0  1.0
-------------------------------------------------------------