Sharing resources

So I have my small home network set up. I have an XP (Home Ed) system and I am seeing the files in a Windows 2000 Pro system. I set up a folder for sharing as well as the printer that is attached to my computer (the XP). How come when I go to the 2000 Pro, that I can see an icon for my network, for my XP computer but I can't open the folder or add the printer? It's as if I'm not sharing. I get a msg that says the network path can't be found.