Practice material for the Verbal Reasoning test, Numerical Reasoning test and the Management Scenarios Questionnaire is currently available at the following link:
limited practice material online on this link
also- Public Jobs advised that one can also expect the actual tests to be more difficult than the practice tests
For the most part I found them easy enough when I did them yesterday although a couple of the verbal reasoning were to me open to interpretation. Only issue I had was timing on the maths ones, I failed to complete the last 2. Also there is an element of flicking between tabs that can slow you down a little