Still can't see it but don't know why: Java always WAS enabled on this machine.
Now the alleged 'print version' has a grid which matches the clue numbers and lengths, but no clues and no special instructions as per the 'interactive' page. Is it even the right grid? The first few across 'clues' look like this:
8 (3)
9 (5)
11 (5)
12 (5)
13 (5)
14 (3)
15 (7)
17 (7)
20 (5)