Please explain use of blocks table for displaying events in sidebars.

I suggest that the documentation include something about the use of the blocks table for displaying sidebars.

To display events in the sidebars add the following row to blocks:

INSERT INTO blocks (module, delta, status, weight, region, path, custom) VALUES
('event','1',1,0,1,'',0);

When delta is set to 0, a "browse events" calendar is displayed. When delta is set to 1, a list of upcoming events is display.

Including this option in the event configuration would be even better.

region = 1 displays events in right sidebar.