Help with double cousins & duplicates please

Hi, my family tree is messed up. We have cousins that married cousins (Keith married Fitch).

I don't know how to fix duplicates:

http://www.geni.com/family-tree/index/6000000009756205580 and
http://www.geni.com/family-tree#291102870560004626

are just the beginnings of problems. I cannot bring them up at the same time to drag and drop to merge them together.

Do you have any suggestions, these are just 2 out of a bunch that have been added - I think because cousins married cousins.

Thanks for your help,
Tina Goyne Mitchell