Trouble networking with WinXP
 

I'm a total n00b to linux so please excuse me if this question is stupid.
I turned my old 466 MHz Celeron into a Linux machine. I'm trying it use it as a server, but would also like to share some files. I started Samba, which seems to work fine. I can see the Linux machine on my Windows machine; however, when I click on the Linux machine in Windows, I get a message saying I don't have permission to access it.
I can't even see my Winodws machine in Linux. I really don't know what to do.

P.S.
 

I'm running Fedore Core 2