I think this might be a case of the software re-ordering pages for a device with new capabilites that doesn't need reordering.
Here are some troubleshooting ideas that may help:
Print to PDF or XPS and see the page ordering
Unconnect the booklet maker, print as noraml, examine the page ordering (The finishing devices on the 880z do some flipping for duplex pages).
Examine the driver and application settings for page imposition and/or ordering settings.
Thanks
Sam