B2B PHP/MYSQL/SECURITY WEB

We need someone to create a single simple data feed for an existing website. Currently, the website excepts orders via a webpage entry screen. We need to create the ability for an outside customer to send us entries from the back end securely. business to business You NEED to have experience in: mysql php xml linux ssh login abilty english You SHOULD have done a similar project already. Management Steps: 1) tell us in your response to this job when you can begin 2) phone interview (you&us) 3) business/technical specifications overview (you&us) 4) time table for deliverables (you provide us) 5) daily status calls 6) payment schedule (50% on completion, must except paypal) Technical Specifications Summary: Add New Order XML Request (*) required field: Last Name First Name Address 1 * Address 2 City * State * Zip Country (always USA) Order Type (S or R) Search Type * Due Date * Textfield1 Textfield2 Returns: confirmation status tracking number for new order request Secure XML login with each request(securty token?) Future project on this website available after sattisfactory succesfull implementation of this project.