ssh problem and smb problem
 

Hi,

After a fresh reinstallation of Fedora Core2, when I tried to add printer which is on windows client share, nothing was displayed in the Networked Windows client. Before I made fresh reinstallation of FC2, windows clients share will be displayed here. Is it to do with corrupted samba of this newly-installed FC2?

Another issue is on SSH. I managed to SSH linux users, but just after few seconds, the connection was kicked out with prompt "Connection reset by peer." Just wondering if I need to reinstall FC2 again.

you seem to be having issues with the services, not the system. reinsetalling could solve your problem (even though i doubt it) but will not help you find out what was causing the prob or even how to solv it when you cannot just go and reinstall.
what you will want to do is get down to the config of ssh / samba. read man pages for the syntax in the config files and if nothing works and you just want to get it to work, reinstall the services, not the entire sys.
try getting down to what the problem is though, and you will get used to linux and it's layout a lot faster.