Since im new to all this I still havent dug deep into what this program can do.  Here is what my plans are.  I have about 5 networks I would like to access remotly.  (Home Office, Parents Office, Work Office 1, 2, 3)  How would I go about being able to manage all of these networks.  Right now what I have been doing is setting up RDP on a server for each network.  Opening that port and forwarding to the server.  From there I open VNC Manager and can view all the computers on that internal network. 

Here are my questions.

1.  From the above setup is this the most efficent?

2.  Is it possible to access the computers directly from VNC Manager on my lcoal machine in the servers list?  To where it goes through the firewall and directly to that persons particular computer? 

3.  What are all you guys doing to manage multiple offsite networks? 

Any help would be great!  Thanks a lot!

I would have to say no, and its not very secure either.

2.  Is it possible to access the computers directly from VNC Manager on my lcoal machine in the servers list?  To where it goes through the firewall and directly to that persons particular computer?

Yes, but you would have to assign each PC a public port and forward it to the box.

WAN IP:3390 > PC1:3389 Still isnt very secure. Rule of thumb, NAT'ing services to the LAN is BAD.

3.  What are all you guys doing to manage multiple offsite networks? 

For me, Lot's of VPNs, which you should take a look at setting up. Check you current router(s) and see if they support VPN connections. I know some cheap routers support PPTP VPNs and/or IPSEC maybe L2TP orver IPSEC.

Also you may want to look into a linux solution for this if you have some old PCs laying around (for home use) http://ipcop.org/ or  http://www.astaro.com/