304959 Website Additions and Updates

We are looking for someone to do make some changes and/or additions to our website. IDE is asp.net framework 2.0 visual studio 2005. Programming language is Asp.net using C#. Database- SQL Server 2000/2005 with service pack 3. Documentation files- Microsoft Word, Microsoft Visio, PDF. Prefer someone familiar with working on online tutoring sites and familiar with working with authorize.net. We need the following changes and or additions: automate the cancel/modify scheduled tutoring session for students so they can automatically cancel or modify scheduled session and recredit their account if appropriate. Add On-Demand-Tutoring to site and Payment Gateway. Add a one time free trial component for 1st time registered students. Add a calendar and time available function to tutors section so that we can list times available and dates they would be available. This would be done in admin section of site. We prefer to rank tutors from 1-10 etc. and the system automatically schedules them for sessions based on the times and days they are available. We want the ability to change tutor rankings manually as necessary based on our review of their tutoring sessions. Service provider must be willing to make unlimited changes as necessary to our satisfaction. We only will pay after work is completed and tested to make sure it funcitions like we want it to. We will escrow funds and release after testing. Please don't bid if you can't do the job. Need job completed in 3 days or less.