calendar not viewable – wordpress default .15 theme

Hi. Apologize upfront for the stupid question, but I’m new to WordPress (only 3 days old), and I’m trying to figure out how everyone has cool calendars in their sidebars, and mine has #wp calendar css and, yet, nothing displays in my template for a calendar at https://www.evfamily.com.

I have read through all the stuff i could find on search for calendar, and can’t figure out if it’s a style.CSS issue or I don’t have something in some PHP config file at the page or theme level set to display it – as it just doesn’t display at all.

Can anyone help me to get the default calendar to display and / or show me a calendar plugin that’s cool that I can use?

Thanks,
Ed