salmarouly,
MyEclipse provides struts capabilities. The sample tutorial referred by you is not certified by MyEclipse and is a combination of Struts and Tiles. You don’t need the controller line always in struts-config. For your current project, you can add the tag mentioned by the tutorial and it will work for you.
Thanks for your suggestion to include the controller line in struts-config. I have escalated this to the management for their consideration and added it to feature tracker list.