III, IV, V, and VI manga
   I really don't know too much about these series.  I got three volumes that will be in the mail in a few weeks so expect more info then.  Here are some Pictures to tide you over.

Dragon Quest 3 Manga

Dragon Quest 4 Manga
an ad for Torneco

Dragon Quest 5 Manga
nothing so far
Dragon Quest 6:  Maboroshi no daichi

DragonQuest are trademark and copyright 1998, Enix of Japan, Jump Comics, and V-Jump magazine.  No stealing or toe stepping is intended.