How about this as an alternative install instructions.
Find
Code:
<meta name="description" content="{$_meta_descr|truncate:"500":"...":false| escape}" />
BEFORE add:
Code:
{* BCSE Begin *}
{if $page_data.metadescr}
<meta name="description" content="{$page_data.metadescr|escape}" />
{else}
{* BCSE End *}
Find:
Code:
<meta name="keywords" content="{$_meta_keywords|truncate:"500":"":false| escape}" />
BEFORE add
Code:
{* BCSE Begin *}
{/if}
{if $page_data.metakeywords}
<meta name="keywords" content="{$page_data.metakeywords|escape}" />
{else}
{* BCSE End *}
AFTER add
Code:
{/if} {* BCSE added *}
That should work.
Hope that helps!
Carrie