How to modify Calendar widgets

Hello,

I am using:
WordPress 2.8.5 and Atahualpa

I want to modify Calendar widgets links.
Now links are dates, when I have been created posts.
Where I can change that?

I want to put events in calendar, not the posts.
Do you know Calendar plugin wich works with Atahualpa?
I tryed WP Events Calendar, and it didn´t work.

And the other question:
I am using Widget logic plugin. And if I am choosing some page as a Posts page, I can´t get those widgets to work in that post page.


Thanks a lot!