rewriting body with contents of attachment

Hey all,

I've been reading this group for a while now, and I'm stumped so I
decided to come here to ask for help...

I've got a pretty robust plugin written for qpsmtpd that inserts
parsed received mail into a SQL database and the raw text of the mail
onto a fileserver... It works great, it's fast, and it does everything
I want it to do. Almost.

There are emails that it receives where the *actual* email is attached
to a fwd'd message. I'm trying to come up with a way to essentially
take the attachment and write it back to the $transaction itself, so
that my previously mentioned plugin can parse it and insert as it
would with any other message.

I played around with body_resetpos and body_write, but the results
were lacking. Is it possible to empty a $transaction object and
replace it? Like you would do with any other mail::internet object?

halp!