> I have tried using gsch2pcb with PCB, but it creates a .pcb file that my > manufacturer cannot understand. Additionally, not all of the components > in my schematic could transfer to the pcb design.
gschem only handles the first half of the process - generating the schematics (i.e. electrical connectivity, or the netlist). You need to convert this to PCB format (or some other layout package), and use pcb (or the other package) to physically arrange the parts and generate/edit the copper traces to implement the electrical connectivity. Doing this the first time can be nerve-wracking if you don't have footprints for your parts; you may have to create them. Once the physical layout is complete, in pcb you just do File->Print and select gerber output, and it produces them.
