move bugs from Zope BITS into Bugzilla?

[lmhaskins at yahoo.com]

I inherited a bug reporting system at work, and it's currently in Zope
BITS (Bug Information Tracking System).  This version of BITS uses ZODB
-- not the RDBMS version.  I would like to export all the incident
reports from BITS to later import into Bugzilla, but as of yet I
haven't quite figured it out.  As soon as I'm done with this, that's it
for BITS and Zope, so I'd like to avoid writing a Zope app just for
this.

Anyone solved this problem, or at least the part about exporting from
BITS?  I'd hand-enter the open issues, but they also want the closed
ones for tracking & posterity.

Thanks!

-lmh