I have installed the component, but... i have to something more?? in my k2 comments i don´t see the option to "vote". I´m sure that i have to change something in my k2 template, but i can´t found the README file or any adittional template.
The README.txt file is in administrator/components/com_tc_comments.
The README file will tell you what you have to do to modify your K2 template. It will also tell you that if you unzip the patch file that's in the same directory (UPGRADE TO v2.5.4 OF K2 FIRST!) you will get a template that is a modified version of the default K2 template. You would have to select this template in your K2 setup.