hello! I have read this thread

http://www.zen-cart.com/forum/showthread.php?t=62726

but i cannot understand these

Then go to your /includes/languages/english/ folder and copy meta_tags.php to YOURTEMPLATE/meta_tags.php
and add these to the file:
shall i go to includes/language/english/ and copy meta_tags.php

to

includes/templates/MYTEMPLATE/??

but their is a file of that name as was done in step 1

or

and what line should i insert these

Code:
define('HOME_PAGE_META_DESCRIPTION', 'My Home Page description metatags');
define('HOME_PAGE_META_KEYWORDS','My home page keywords here');
Please enlighten me, i can't get it

Thank You!