Greg, I had exactly the same problem.
you need to make sure that your server services are enabled in
Then right click the folder that you wish to share and click on sharing and
then you have to disable your firewalls on both computers (remember to
enable them again and configure to accept network sharing after you are set
then run the network wizard on both computers and follow the instructions.
if you have a usb memory stick, it is easy, just copy the setup from one
computer to the other.
hope this helps. if you need any more help, post here. matt. good luck!