from my own manipulations. Seems like I'm the only one on this forum interested in this. Here's the solution I came up with:
1. Create the outside network first, since it will provide the IP for the inside network's router.
2. Use say 192.168.254.0 for the outside network, with 192.168.254.1 for the outside router's inside IP (outside IP is for the internet...) and 255.255.255.192 for the subnet. Use NAT addressing for the network. Set the IP address set to start at say 192.168.254.5 and ending with whatever is needed for this outside network. If more IPs are needed than the 60 some then use another IP set.
3. Inside network IP set can be say 192.168.1.0 with the inside address of the router as 192.168.1.1. Again use NAT for the addressing and this time use 255.255.255.0 for the subnet. Use 192.168.1.100 for starting address and include however many you need for this network, keeping in mind to limit them to only what is needed at the moment for securuties' sake.
4. Now to log into the inside router and remove all settings on the security short of removing/disabling the firewall. In other words don't disable the firewall completely. Some routers will not let you do much so you'll have to play around with the settings.
5. On a PC within the inside network do a search for a PC share located on the outside network which you want to link with. You can search by computer name or by IP address of that computer. Then right-click and drag the found PC/share to your desktop and create a link.
VOILA! You have yourself a network nestled within another providing security to the inner network while offering a method of sharing files from the outside network to the inside network.
