Arduino Uno + Ethernet shield + Relay Shield Seeeduino

Hello everyone.

I have a question for you. I have a project using my arduino uno to turn lights up over ethernet.
My school have me the ethernet shield R3 (official), my arduino Uno and une relay shield from seeedstudio v2: http://www.seeedstudio.com/depot/relay-shield-v20-p-1376.html

The problem is that on the ethernet shield i don't have the 6 pins for connection between shields ( cercled in orange).

Will this still work?

I will join a photo of the setup so you can have a look.

Thank you in advance

ArduinoUno_R3_Front_450px.jpg

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