I am not sure I follow what you are saying. Can you possibly screenshot the screen that you see and post it or go further into detail?
Are you sure you shared the folder you want to share on the network? Your my documents wont be shared by default on either pc, you need to make sure you right click the folder and select share.
Can you specify the following.
Computer Name
Computer Workgroup
If everything is setup right, you should be able to access a networked computer by typing the following into any explorer window, even the run box and hitting enter.
\\computer-name