Hello,
I can not find a way to force Atahualpa (3.7.10) to show titles only at Archives page. That's why I am asking for help. Wordpress 3.4.2. site address: http://www.4ogrody.com/
Thank you very much for your kind help in advance.

use CSS to hide the titles (display: none then show them on archive pages (display: block

Thank you very much for your answer but I was not precise in my question.

I do want to have titles of the posts on my home page and page, of course but I can not find a way to show at Archives site (after clicking the desired month) only titles. Now the system shows titles with excerpts and icons which is OK at Home page but not at Archives.

Meanwhile I have solved this problem.
To reach this effect you just have to add in the CSS Inserts:

body.archive div.post-bodycopy{display:none;}