Terry,
Currently password cannot be set within the CREATE action. For example, the following will not work for password:
CREATE RegularUser WITH RegularUser.LoginName = 'name', RegularUser.Password = '123'
However, password can be set in a separate assignment action, so the following two-action rule will work:
CREATE RegularUser WITH RegularUser.LoginName = 'name'
RegularUser.Password = '123'