Can anyone help me please.

Im building Extreme's 360 and im in the middle of relocating the fuel filler neck. I've watched the DVD which has helped me a bit but I have some concerns ??? After removing the plastic fuel neck im left with several thin plastic pipes which I think are breather hoses as they connect around the top of the cap. Can anyone tell me if I am to remove these completely from the car or are they to be relocated themselves. Also the Dvd tells me to attach the breather hose near the top of the filler pipe but I'm unsure how I actually attach it ??? Do I need to buy an attachment and make alterations to the hoses ???

Any help would be appreciated as I'm worried about getting this wrong an potentially blowing my car up