I know this is a zombie thread now, but I am also having trouble re-assembling my V-Cube 7, but all of those damn stop-motion videos are doing nothing for me. Here is my question:
How in the name of Cleopatra Jones do I pop in the last piece (the corner of the 5x5 square)? The pictures on the V-Cubes assembly page is the same as the pictures on the guide that comes with the cube, which doesn't say "how". I am putting all the muscle I have into sliding pieces apart to make enough room for the wedge to go in, but it just ain't happening. I made it happen once before (when my V-Cube came broken in the mail with a snapped of blue core arm that I superglued back on), but I am wondering if there is a better way than biting my lip and praying to the Cube God that I don't pop out a hundred pieces putting so much force on it.