I am unable to view 5 of our workgroup computers from Windows 7 computer in the Network settings to connect shared folders. 4 are visable but the enire network does not show up any advice?

For accessing shared folder you need access via port 445. For seeing shared resources you need at least ports 137-139. My recommendation: Disable firewalls for the moment and catch the network traffic in your infrastucture and you will see, what porta are important. Regards Milos