Johannes, do you have contact data for Jozsef or Arpad? Peter, is your version also available as a dtx file?
An older revision if 1.5 is available as dtx: http://www.math.bme.hu/latex/dl/magyar.dtx http://www.math.bme.hu/latex/dl/magyar.insThis is the version I've sent to Johannes, and I haven't received an answer for about 1 year. I won't make any new .dtx versions until there is progress with the inclusion of the old one.