Use this URL given below:
Regards,
Priya Kumar
ServiceDesk Support
Change the Servername , Username&Password , port and Authentication
http://sdpsupport-5/servlets/RequestServlet?operation=AddWorkLog&workOrderID=41&technician=administrator&description=test description&starttime=22 APR 2013, 01:00:00&endtime=23 APR 2013, 01:00:00&workhours=4&workminutes=10&username=administrator&password=administrator&loginDomainName=Local Authentication
Regards,
Priya Kumar
ServiceDesk Support