Wireless Router + DSL PPoE + 2 computers : how to network with each other

just adding something else...

after you are done with 2hype's info and done correctly, you can see each other under Network Neighborhood - Entire Network (might be on the left panel) - Microsft Windows Network - Your Workgroup Name - Your computer Name...

if you click on the computer names, you probably would see much as to the drives or the files. you would need to share the drives. the simpliest way is to:
1) go to My Computer
2) right click on the icon for Drive C
3) choose Sharing...
4) on the Sharing window, there is a New Share button at the bottom, click it
5) on the New Share window, just type C for the share name the click on the permission button and give Everyone full control/access
6) click on Done or OK to go back to Sharing window and click on Ok or Done to go back.
7) now repeat on the other computer...

Now when you go back to the Network Neighborhood (or My Computer) then choose Entire Network then Microsoft Windows Network then your workgroup name and computer name then you should see the shared drive "c" under that are your data... (view cpu 2 from cpu 1 and vice versa to see other cpu's data... this also lets you view your own data i.e.: view cpu2 from cpu2 then its cpu2's own drive...)

NOTE:
now that you have sharing setup using the easy way with no security... you really should enable security on your wireless network. WEP would be the simplest and easy to follow using the instructions came with the router. let us know if you need help with this too....