how to change a template category in K2

Hi
There are different templates of a conclusion of materials in Joomla and K2
When I select item of the LIST of ARCILES of the CATEGORY JOOMLA menu I receive beautiful list of aeticles in three columns.
If I select item of the menu of the CATEGORY K2 JOOMLA I receive ugly separate names of articles.
Question -
how to replace a template of articles in the CATEGORY K2 on that is used in the LIST of ARTICLES of the CATEGORY JOOMLA?

I will be grateful for the help.
Alex

Sorry
I tell about the Financial Business template template (Joomla 2.5.8 + K2 2.6.2)
Alex

Hi

I yet don't manage to solve a problem of replacement of a template.
Whether somebody can tell as it correctly to make.

I will be grateful for the help.
Alex