I currently have a pretty large job that requires experience with NBill and interacting with other components such as marketplace for joomla. This job will be done in steps and requires a user to be able to purchase via invoice system and the data needs to be posted into the markeplace database upon completion. If you are not experienced with NBill do not bid on this project. In your bid please explain about your nbill experience. The manual alone is 260 pages and do not have time for you to learn on the job.