How to build my own view for apache solr module
This is a duplicate of the question https://stackoverflow.com/questions/12496764/how-to-build-my-own-view-for-apache-solr-module so the answer is the same as well. Let me quote:

The .tpl.php files are theme template files, and you can override them by using identically named files in your own theme. Some deeper reading at Drupal docs.
Or you could use the search features provided by Google, as I did, and find an already existing answer on a related site.