Visual Studio project

Hello, I need a desktop application (a sort of an fTP client) that must connect to an ftp server and from that server to get 5-10 .mp3 files and download them in a folder of my choice. It is actually very simple. I will give away this software to my customers and they will choose where (in which folder) in their computers they will save those files during the instalation of this software that you will build. After that there must be a scheduler that my customer will set during installation (and later from a preference menu) in time intervals that he wants to connect to the ftp server to look for new files and download them only if it finds new files (changed names or size or date and time). So the software must have installer. I need also a solution to be able to change server if I must and all my customers automatically to connect to new server. (perhaps an external XML file on my server could connect with the application to tell the application where it would download the .mp3 files from. In this case you must also provide the XML file or if you have another solution it's ok with me as long as the whole thing will be delivered by you. I also want to get the source code of the program. The program must run in ALL windows versions XP,VISTA,7,2003 server,2008 server, and in ALL platforms (32bit and 64 bit). Please test before deliver. I will not accept the software without all the above requiremends completed. If in one program you can not cover all platforms and windows versions, then create 2 files one for 32bit and one for 64 bit platforms. The installation interface and usage interface must be easy as if you build it for people that had never use a computer before.