Hi,
Many thanks for the barcode packing slips module. That is what I was looking for. I installed it and I followed the instructions regarding the files to be uploaded and the other settings. However, I cannot find where to add barcodes to the products (old or new). I noticed that the orders have a barcode asigned but it is the same for all the orders.
Please let me know what to do or what I did wrong.
I mentioned that I searched hours over the forums both on Zen-cart support and also on author's forum. I even tried to register on the author's forum but I didn't get the activation link.

Thank you in advance.