Customisation of MS Project server 2007

We have project server running in our company. where below are the given things which we like to have .. Here are the following emails which we wanted to have 1. Email Must work in following way. a. When a task is being created/updated every member of that project must get email for that. b. Task approval even if developer gets a new task by email he must approve/accept the task before he start. c. Daily email to administrator/project manager about current status of the project with current task, delayed task with last update on the task. 2. Server must give us notification if we assign a task to a user who is already busy on some other task of diff. project or of same project. 3. In one view me must be able to see the current status , delayed project etc . 4. Installing new project server on a dedicated server. 5. We must have a real time calculation of price with Employee Vs Project which is accessible to restricted user , so that we can plan more efficiently.