Need immediate help with configuring and using Jbilling for our virtual PBX service, including:

1. Development of API for Paypal Gateway Pawflow Pro.
2. Reviewing Jbilling set up for best practice and ensuring with can generate recurring PBX fee invoices, email same and effectively process payments using credit/debit cards.

Experience with Paypal and Java/Jbilling are a requisite.

Can anyone refer me to someone.