Network

Hello,
hi i have a to system ..with win xp sp2 and using lan ...i can use internet from both systems ..and i can see the computers in network place ...i can ping them but problem is ...when i want to connect to them from first to another ..the dialog box for user name and pass just have guest in user name and dont let me write the user name ..

and from second to first computer ..its just eror come you dont have a acces ..

i just turn off the fire wall ..and allso turn of the norton (2008) i enabled the shared folders i both computers

and i tried net use command for make network drive ..but it dosnt work ..and i enabled remot desktop in both computers ..but still i cant use shared folders ..what is the problem ?!!


thanks..