Respected, the university researcher may have been, but from what I can tell he wrote a book where he mentioned it rather than a paper about it. Big difference.
Actually, the book is pretty much all about genetic entropy, except the parts that are all about creationist apologetics and YEC PRATTs. It's published by the Feed my Sheep foundation, and it's the only book they publish; take that as whatever you want. There's a fairly long thread in which a poster named VoxRat dissects it chapter by chapter (amidst a lot of chaff) at
Another look at "Genetic Entropy & the Mystery of the Genome" by Dr. J.C. Sanford.
He's also developed a computer program called Mendel's Accountant, which simulates evolution and has been hailed by many creationists as final proof that evolution doesn't work. It appears that the basic story is that it's set up so that it's impossible for its simulations to show beneficial effects and, surprise surprise, the output never shows beneficial effects. There will probably be a FAQ somewhere Real Soon Now that discusses this in detail, but the seeds of this FAQ are in the
Evolutionary Computation thread.