Unable to make NetDrive work with Windows Backup

[nowwhatnapster]

I had this idea of setting up NetDrive on a laptop and having windows backup & restore to use the drive as its backup location. Seemed like a cool way to have off site full system images sent to my FTP server. Only problem is the NetDrive is not appearing in windows backup as a valid location....

Any thoughts? Perhaps its because the NetDrive is NDFS not NTFS? Its W7 Home Premium btw.