Out of curiosity, knowing that I'll eventually have to upgrade to Windows 7, I just checked and it seems that there are drivers for my good old Delta 44.
Still running XP and I don't plan on switching OS before a while, but at least, I know that I've got that covered, which is nice cos' I know they took a long time to support Vista.
Pretty much like Dave and his Dakota, I've ran this thing under 98, 2000 and XP - basically for the last 10 years, throughout which I remember having problems w/ drivers only once.