vpopmail and locals

Hi,

Sorry if this is a newbie question, but is there a guide somewhere that descibes
setting up
vpopmail/qmail for local and virtual users together?

I have a single IP system hosting 8 domains. 1/2 my users are real /etc/passwd users
with
home directories I'd like to store their e-mail in ~/Maildir and then there are a
bunch of other
forward-only people and some virtual (non /etc/passwd) users I want vpopmail to handle
and
store their email.

Is there a simple how-to guide on the web explaining how to set this up. The vpopmail
doc
only seems to talk specifically about the virtual side and I'm not seeing how to make
it work
with qmail and do what I want to do.

I used qmail.ru's lazydog setup with a number of patches and all-in-one feature set.

Bottom line is, I get the following in my maillog when I try sending to a local user.

Sep 20 23:35:26 host1 qmail: 1064115326.821226 delivery 274: failure:
User_over_quota._(#5.1.1)/

This is a brand new RH9 system with NO mail on it at all. There's no way the user is
over quota.

Thanks,
David