I need a program used to back up files to a web server (exactly like iDisk for mac users). The user should get 10mb of data (unregistered), and using a web script (that will also need to be included) be able to register and buy a product code. 10$ a month for 10GIGS, 20$ a month for 25GIGS, and 100$ a month for unlimited space. I need client side and server side scripting. Both should have GUI and be easy to use.