Hi Brian, the inputs for Network go like this:

0: Object list - U curves
1: Object list - V curves
2: List of curve orientation values - U orientations, each has a "flipped" bool value and a "seam" parameter value.
3: List of curve orientation values - V orientations
4: String - Mode, one of "normal", "lighter", "custom", "uniform"
5: number - Custom tolerance, Fitting tolerance to use when mode = "custom"
6: int - Uniform Num Points, Number of interior points to use when mode = "uniform".

If you pile up all the curves in input 0 and leave input 1 blank and the orientation lists blank it will automatically sort the curves into separate U and V lists and generate the orientations.

- Michael