Tutorial : GNU Taler Point de vente

Hello,
I seek

  1. Document explaining the integration between GNU Taler POS and Merchant BackOffice.

  2. Where to report a bug encountered in the Merchant BackOffice interface.

  3. Document available in the TALER directory. (Service accepting Taler payments, and user using GnuTAler SME).

    Thank for the responses
    Pierre