First go to the tab labled Config Extensions (just above I/O Map). Then chose the tab marked Select Extensions. Now you can enable ethernet as an option in your processor by selecting one or more TCP/IP connections (in the upper right corner). You can also choose Peer Cop if you will be using ethernet for I/O. After this you should be able to pick your NOE module in the I/O Map.
Third party cards are not available from the standard Schneider pick list. The card manufacturer should be able to tell you how to add it's driver.