Blackberry app

i need to build a mobile Java ME Database application using the MIDP standard APIs (Must Support Blackberry phones)-Application must be client/[login to view URL] application's first phase simulates an attendance register with several devices dumping attendance list to a Windows Desktop Application. FOR EXAMPLE The Desktop has a Database of students in different classes,at the end of each day the class teacher marks attendance on the mobile device and updates the Desktop via an HTTP & TCP/IP of the Blackberry Enterprise Server Express(It's Free) via an SSL [login to view URL] device of the teacher hosts the list of his/her students and after each day it is marked by the teacher and uploaded to the server.