FTP is the File Transfer Protocol. It is one method for storing files in a central location and sharing them. FTP servers will not show up under "My Neighborhood". That is a windows workgroup thing.
Personally, I prefer the FTP method. Windows file sharing is very chatty and can negatively impact wireless networks when many machines are broadcastion Netbios traffic.
I just purchased the Linksys WRTSL54GS router. After many many calls to them just to get it able to get online, I now want to be able to use it for network storage. I have a Dell Inspiron 6000 wirelessly connected to it, and a Maxtor 100GB hard drive connected to the router via USB. Following Linksys' instruction manual, I can FTP to the drive. However, I can't see it in My Network Places. Can someone please help?