Dear MKateseve,
You can see MS CRM SDK, its very simple to create custom entity name as Event.
1. Settings --> Customization ---> Customization Entities
2. Click on new Entity and put name as Event
3. Set the area where you want that entity
4. Save Form and add new attributes
5. Put attributes on the form
6. Save
7. Publish Entity and it will display on the form.
Let me know if you need any help : msn : mscrmexpert@gmail.com
Regards,
Imran
htttp://microsoftcrm3.blogspot.com