In case you haven’t figured it out, you need to take the zip file with all the code and add it to the library before it will work. In the code, it says
#include <SD.h>
#include <SPI.h>
#include <EthernetV2_0.h>
#define W5200_CS 10
#define SDCARD_CS 4
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192,168,1,177);
Every time I tried to compile, I got an error. I would have to take the v2.0h out before the code would compile, but then I would get a bad address on serial check. As soon as I added the library containing the proper EthernetV2_0.h script. Now it works, no problem. Try this before you start trouble shooting to board.