Bugs with 2.01 Beta (External scripts not working)

Hello,
I have an external script which looks something like this.

void CreateUser(testRunner)
{
String Email = "sdfsdsfsefas@dsfdasf.com";
def props = testRunner.testCase.getTestStepByName("Properties");
if (props.getProperty("Email") == null)
props.addProperty("Email");
props.setPropertyValue("Email",Email);
}

This functions as expected in 1.7.6 but in the beta release this function does not work.

Ali