The applet now shows an orthorhombic cell where the c axis is longer than the a and b axes (and so the reciprocal lattice spots are closer together on the axis going into the screen).
If you rotate the crystal, you should see a lot more rings. This is because the (001) ring is no longer the same as the (100) and (010) rings. In fact every ring involving a non-zero l component is now different.
If you chance the cell α angle to procude a monoclinic system, the pattern of rings should become even more complex. In this case a computer program would usually be needed to deduce the cell parameters.