Do NOT waste your money on that blog. It's complete garbage.
First off, look at the huge number of outgoing links. Not only will they completely devalue any link you get, but I'm sure Google will be around soon enough to lay down the banhammer. This blog has zero content and isn't even a health niche site - it's just pretending to be! Oh, and it's not even PR3... the Google Toolbar says PR2.
The guy trying to sell these links to you is titan89, correct?
Don't bother. The sites are all worthless.
And the guy keeps spamming my PM box trying to get me to buy them.