Here are two interviews about Dr. Poythress’ new book on logic from a van tillian perspective that came out earlier this year at the end of February:

http://www.credomag.com/2013/06/06/logic-an-interview-with-vern-poythress/

http://reformedforum.org/podcasts/pft20/

a free PDF version is available here:

http://www.frame-poythress.org/pdf-of-logic-by-vern-poythress-now-available/