We've found a workaround for attachments to punch list (not great, but doable), by using the attachment module in document management. We created a punch list folder in File Director and any attachments we upload will be linked to the punch list using the paperclip icon. Autodesk was not willing to finish the design in the punchlist module nor were they willing to be hired out to complete it, so we are looking to other companies such as Vella and Primavera. Very disappointed.