I am one of the founders of Whizlabs and I would like to clarify that we are not a fly-by-night/cheater or any such organization. We are now close to 5 years old and I personally know how much contribution we've made in the career's of lakhs of IT professionals worldwide.
For WebSphere (287) Exam Simulator, please note that as mentioned on our website there are 5 Mock Exams: 1 Diagnostic Exam, 3 Practice Exams and 1 Final Exam. For all of our exam simulators, there is 1 Diagnostic and 1 Final exam and rest are Practice exams.
Please let me know if you are having any difficulty in find 5 Mock Exams as briefed above. Feel free to write to me at firstname.lastname@example.org.