Missing Language Files Or Directories

I installed the spanish pack from here:
http://www.zen-cart.com/index.php?main_page=product_contrib_info&cPath=40_46&products_id=524

I get this error message when entering the zencart admin section:
MISSING LANGUAGE FILES OR DIRECTORIES ... Spanish Spanish

But then again it seems to be working fine. Please advise and thanks very much.

Found the problem. I changed the directory name "admin" for extra security and when I uploaded it did not upload to the correct location.

One new problem now. When I view the page source in my browser when I switch to spanish only, not english, I see this:

<div id="logo"><a href="http://XXXXXXXXXXX.com/zencart/"><img src="includes/templates/template_default/images/logo.png" alt="" /></a></div>

I need the change the logo path from "template_default" to "mytemplate"

What file is this located in?

Thank you very much