Is this offer still on? Point 3 of T&C's says you now need 50 earned summit points?
That's a shame. It really was an incredibly easy deal. They probably had a lot of people signing-up, playing one hand, claiming the books and then withdrawing. 50 summit points will probably take about 8-10 hours if you single-table at the lowest limits. Obviously you can accumulate the points faster if you multi-table and/or play higher limits.
An indepth discussion of the bonuses can be found here