how can i add calender article in Metatrader?

 
I download Getright program from internet. And i download claender article and time.mqh in the right directory. and when i start to add calender article to my meta trader 4, the system download calender to experts/files directory. but it cant show them in chart. And also i configure it that get external dll. but in this process meta trader software cant work. and i always have to close program and start it again. So is there any one to explian me how i can add calender in my system.