Diet Web Site + Installation

I am looking for a minimal site setup where users can login with a simple ID and Password and they will see a menu. The menu will have 3 options: 1) Setup 2) update weight 3) view report For Setup, the user will enter their current weight and the program will record this as the original weight, along with a time stamp of when it was entered. This will be used in report (menu option #3) For Update weight the program will request the user enters current weight, and then saves this along with a time stamp of when they submit the information. For Report, the user will be able to view their weight loss in comparison to all the other users in the system. The report will not show the weights but will show percentage of weight lost/gained, the number of days for each user, since the original setup date for that users, and the report will sort the users with the highest percentage on top of the list. For example: Setup.... Enter Name: jon Enter Password: xyz Enter Start Weight: 150 Program stores this as "jon", "xyz","150","3/20/2009"; Update.... (first user logs in with name and password.) Welcome Back Jon, please enter your current weight: 148 Program stores this as "jon","148", "3/27/2009"; Report... (pulls in the last record for each user, and compares against the first record. It then calculates the weight lost (start_weight - current_weight)/start_weight = WeightLoss In this example, (150-148)/150 = 0.01333 (or 1.33%) for Jon. It also calculates number of days (currentdate-startdate = days) In this example, (3/27/2009 - 3/20/2009 = 7 days. The report would show: ---------------------------------- Name | Total Loss | Days on Program ---------------------------------- Jon | 1.33 % | 7 days ---------------------------------- Jac | 1.20 % | 7 days ---------------------------------- Mis | 1.00 % | 7 days ---------------------------------- Pam | 0.95 % | 7 days ---------------------------------- Joe | 0.50 % | 7 days ---------------------------------- If you can setup a demo that would be great. Let me know if you have any questions. My budget is $30.