Create a Membership site in PHP or Joomla

I have recently purchased a Tukanas Freelance Script. Unfortunatelly some features of the script do not work the way they supposed to. basically i need someone to either fix the script, or completely write a new one from scratch. This is what i need: 1. Main page: attached is a sample of what the page should look like. 2. Admin area where I can edit all pages with a WYSIWYG editor. (might be optional if everything is in PHP) 3. User registration page with the following fields: - Name: First, Last - Email address - 10 check boxes with data fields (able to change values) - Location : City, State, Zip Code - Budget (able to change values) - Time frame (picture of a calendar to check off which days the project is scheduled for) - Description 4. User1 Area - Providers - Ability to add projects with the following fields: - Project Name - Dates project is to be completed (calendar check off...) - 10 check boxes with data fields (able to change values) - Budget - Location : City, State, Zip Code - Ability to send IM/email messages to other Providers & users - Ability to rate users: comments, 1 to 5 stars rating 5 User2 Area - Workers - Ability to search projects based on the 10 check boxes with data fields, and search box - Ability to send IM messages to other users and Providers - Ability to check the dates the Worker is available on the calendar 6. User1 Area - Providers Post Project - Ability to post project with fields marked on the image. - Ability to Edit and browse own projects as well as other's projects. - Check Image... Please Look at the attached images, as they are more descriptive. I want everything to be coded in PHP. If every option can be utilized, Joomla, or WordPress can be used also. Please remember I need all options to work before the payment will be released.