This is more of a Linux question, rather than a Windows 7 question. That being said, is your home folder shared and do you have NFS configured on your linux box. Also, be sure to look at your permissions on the Linux box.
Basically, set up the share on the Fedora box first. Check this link for more info:http://www.liberiangeek.net/2010/05/how-to-share-filesfolders-between-windows-xp-vista-7-and-fedora-linux/