The Scrapebox video guides are not very clear on keyword placement.
If you watch the Blog Commenting Video he never says where your keyword or anchor text goes.
He doesn't use keywords as the name. If you look at what he is posting the only thing he is getting up is his link (google.com in the example) is where you asked if you have a website.
There is no anchor text or keywords in the sample comments he shows.
If you read "The Comment Poster" it is not very clear on how many options you have.
This is one example that you can put in your comment or at the end of your Comment.
<a href=?http://www.yoursite.com?>{Click Here|Visit This}</a>
<a href=?{http://www.yoursite.com|http://www.yourblog.com}?>{Click Here|Visit This}</a>
Again there is no mention of your keyword. But that is how you would vary your anchor text.
<a href=?{http://www.yoursite.com|http://www.yourblog.com}?>{cats|cat food|cat health|cat diets}</a>
The last part is linklock.
I don't understand where you put the
http://www.catsite.com {cats|cat food|cat health|cat diets}
When you create an account instead of a persons name it will say cat food and website will be catsite.com if you click on the poster's name.
If you put this in your website.txt you can rotate your anchor text. You have to have the name.txt but it will ignore the names.
One experienced Scrapebox user said that her names.txt is a mixture of her keyword and generated name.
The one thing they don't mention is that if you have a link in your comment text it is more likely to be rejected.
I hope this helps.