I except evolution but i like to get my facts straight. 

I got in to a discussion with a creationist a few days ago about homology being explainable by common ancestory. I was reffered to an article by a Kofahl, Robert E from 1992 called "A serious problem for homology" basically claiming that this is wrong. I have since been searching the internet for some information on the subject, however im getting very different opinions, and frankly I don't know what to think. 

I was under the empression that homology by now was well supported by genetics. 

Anyone here able to help me out?