Hi, I'm afraid I'm no samba expert, but if you can see the file but not access it, it sounds like a permissions problem. The real reason I'm commenting, is that Fedora 8 is out. It is free, and contains a great many improvements. You should use the most recent version for security reasons if for no other. Bugfixes would be another big reason to use the most recent version of any distro.
Also, samba has many frontend gui tools that may help you configure it correctly.
This might help too....
Good luck with that...