WebLogin issue - Not showing the correct document as per the web permissions!#

I've setup WebLogin and it's all working correctly, added some WebUsers and then given them access to view certain pages. But when I login as a webuser it doesn't show me the documents I should be seeing. It seems to show the pages which are set for the other WebUser.

Here's the example:-
http://www.the-windowcentre.co.uk/beta/login

Username: a_test Password: Letmein123
Once logged in you should see Property 3

Now logout then login as below:-

Username: b_test Password: Letmein123
Once logged in you should see Property 2

But it doesn't show Property 2 it shows Property 3.

Can anyone advise on what I can do, or help if I'm doing something wrong...

Many Thanks