Wrong instructions for CK Editor. Need accurate information to install please.

I'm just wanting to install CKEditor. I've had it before and ran in to this problem, and don't remember where I obtained the correct instructions for 2.3.1.

Here's the instructions I have:

Step 1
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Go to ckeditor.com  and download the latest Editor Release (CK Editor, which has superseded FCK Editor)...
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Step 2.
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Unzip it all, then upload the fckeditor folder and all it's contents to your admin directory.
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Step 3.
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Amend /public_html/admin/includes/template_top.php 
__________
FIND THIS:
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<script language="javascript" src="includes/general.js"></script>
_____________
ADD AFTER IT:
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<script type="text/javascript" src="ckeditor/ckeditor.js"></script>
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Step 4.
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Amend /public_html/admin/categories.php
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FIND THIS:
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tep_draw_textarea_field('products_description[' . $languages[$i]['id'] . ']', 'soft', '70', '15',    (isset($products_description[$languages[$i]['id']]) ? stripslashes($products_description[$languages[$i]['id']]) : tep_get_products_description($pInfo->products_id, $languages[$i]['id'])));
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CHANGE FOR 
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tep_draw_textarea_field('products_description[' . $languages[$i]['id'] . ']', 'soft', '70', '15', (isset($products_description[$languages[$i]['id']]) ? stripslashes($products_description[$languages[$i]['id']]) : tep_get_products_description($pInfo->products_id, $languages[$i]['id'])),' class="ckeditor"');
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Step 5.
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Upload it and refresh the category (prodcut adding/editing) page. You should see the newly installed Editor. Enjoy!


Neither of the codes it tells you to find to replace exist in either of those files in oscommerce 2.3.1. Anyone have the correct install for this? Not sure why it says for 2.3.1 in the oscommerce addons when it's clearly not accurate.
Here is the link to the one with the wrong instructions that I'm talking about:
http://addons.oscommerce.com/info/7112