I always find trouble when running tests (manually

After assigned the tests to a tester, I connected by the tester and I clicked on "Execute" to execute the tests assigned to him, but instead of finding an interface containing the screenplay and the field test for put the result (successful, ...), I found this interface:
http://i62.servimg.com/u/f62/15/92/83/09/execut10.jpg
Can I get help please.
Thank you in advance.