the second part of this video is my hypercube training course XD so check it out if you want to see the multiple ways you can make hypercubes
YouTube - Gamergoddess - WW Bejeweled 2 guide
watching your vid you missed a hypercube with the whites when the game started. see if you got the greens first...it would give you a chance to make a vertical 3 with the blues...which would bring the white down just where you needed to make a hypercube. everytime you see 4 think "possible hypercube potential" and dont go for the bomb right away until you checked that there are no similar colors of the 4 around it to manipulate into a hypercube. doing this strategizing takes practice but the right kind of practice
