Thanks for the link, now I know we are talking about Professor Reiner Protsch von Zieten, former director of the Institute of Anthropology and Human Genetics for Biology at Goethe University in Frankfurt.
His work was exposed as fraudulent, and he was fired, in 2004.
Protsch's work had nothing to do with DNA analysis, but rather faked carbon-14 dating of a very few relatively modern specimens to appear much older and Neanderthal-like.
His work had nothing to do with actual Neanderthal remains, only with more modern remains he pretended were much older.
Other than the sensation it caused, the effect of Protsch's work on science itself was virtually nil.
Conservapedia also notes the following about "Professor Reiner Protsch von Zieten":
Perhaps it has just started making the rounds on the YEC websites.