I want to show only partial posts and I cant seem to find the setting in wordpress. Does anyone know where its at?

There are two ways you can accomplish this. You can either insert the <!--more--> tag in your content where you want the blog post to cut off. Only that portion will show on the index and archives part of your blog.

Another way to go would be to edit the index.php file of your template and change this:

<?php the_content(); ?>

to this:

<?php the_excerpt(); ?>

Hope this helps.

I was looking for the 2nd option for long, the first option didnt worked well for me since i saw that side columns of my blog got messed up.
Thnks for the post.

The php thing worked for me,thanks!