Take a look at this site; there are others out there that do similar things. I've never used them, but they appear to do what you're trying to do. It's not expensive, but neither is is cheap.
http://www.worksmart.net/ws/index.html
If you've got someone technical, you could just do an FTP server, and create file storage space with logins for all the users.
Many freepers kindly helped to get a FRhomepage organized on Internet Explorer and Safari. It should look organized, now.