You really didn't need to buy anything extra. The flowpoint will do everything you need it to do. But from your level of experience I wouldn't reccomend that you mess with it. If you have a friend that does networking then you could do the following.
1. Get the password from your ISP (they will not want to give it to you but make them, it's your equipment)
2. Have your friend telnet into the flowpoint and enable dhcp and set up NAT. The flow points NAT is very flexible and you can even map your static IP to your private ip addresses.
3. Give that person a round of drinks the next time you go out.
The other option is this. And you can do this yourself.....
1. Purchase a linxys router with 4 ports (it's just like your flowpoint)
2. Plug your flowpoint crossover port into your linksys router's DSL/Cable port.
3. Plug your two computers into the linksys router with regular ethernet cable.
4. Follow the directions with the linksys router. (The beauty of this setup is that you configure the router in a web browser)
5. Make sure that you have the following enabled in your network properties (right click on network neighborhood and select properties)
a. You have tcp/ip installed
b. you have client for microsoft networks installed
c. under the 'identification' tab, each computer has a unique name and the same workgroup name ie. computer1 = name:Computer1 workgroup: workgroup
computer2 = name:Computer2 workgroup: workgroup
d. under tcp/ip properties you have server assisgned ip selected.
email me if you have any questions
soho@speakeasy.org
jay