Hi,
we have a problem: we have to connect openpicus (flyport wi-fi 802.11g) to arduino uno. Someone can help us?
Someone can help us?
Sure. Send me an address, and I'll send you a roll of duct tape.
If you want more help than that, post a link to the device in question (and NOT a link to an EBay add; they are next to useless).
Our address is: "classevirtale2013@loccioni.it" and the link is: AskGeek.io
Thanks you and I hope you will write me back soon! 
From your link:
Communication up to 4 UARTs, SPI, I2C
Which of the three methods do you want to use to communicate with the device?
I2C
So, what's the problem? The pin usage is shown in the link you posted. Connect it up and start talking.
But witch istruction I have to use?