TS said the exam papers are free.
But from the links at the website, one needs to pay to get the
exam papers. 
There is one website that is really FREE, no buying is
needed.
The website has all the exam papers for all the primary school
subjects from P1 to P6 from 2000 to 2012 from many, many
schools.
It is just like the previous Miss Koh website.
http://www.java-samples.com/testpapers/index.php