Problems at the USDA Blog?

Here's the August post on the USDA blog with my comment.

Here's the text of a comment I've received (similar to ones I've received sporadically over the weeks).

Ephedrine faq. wrote:

[Trackback] Ephedrine. Pseudo ephedrine. Bronch-eze ephedrine. Danger of ephedrine. Ephedrine products for asthma.

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Respond to this comment at:
http://www.usda.gov/blog/usda/entry/h2_peoples_garden_workshop_focuses#comments

When I use the "archives" feature to scroll through the posts for a month, for both August and July a handful of posts at the end of the month are displayed, but nothing for the first part of the month nor is there a way to find older posts. 

Bottomline:  somehow USDA isn't paying a whole lot of attention to their blog.