Ethernet sheild(W5100) not working with Uno

Hi.

Can somebody to prompt which type of SMD need i to book for excange this "511" net chip and how it must be marked? Or just place the pic of properly mounted SMD on this device?
(I guess, that it's 1206 package, marked by 470 or 47R0, but afraid to mistake)

Thanks.
And one more thing - can I just load the sketch to my Arduino Uno? or need something else?
Because, when I just compile it I have some error messages.

G:\distributives\arduino_sources\arduino programs\arduino-nightly-windows\arduino-nightly\libraries\Ethernet\src\utility\socket.cpp:365:19: warning: unused parameter 's' [-Wunused-parameter]

void flush(SOCKET s) {