Printing 2 pages per side does not work. I am using the HPLIP driver.
What this in writer and using print->page setup "pages per sheet", or in writer with "brochure" mode, or something else ? FWIW If you use tools->options->openoffice.org->general and select "use openoffice.org dialogs" this will use the "traditional" print and file dialogs, though I don't think the traditional print dialog gives you the feature for 2 pages per sheet.
I'm using oowriter and using print->page setup "pages per sheet". btw evince pages per sheet doesn't work either.
This should be bug 213996, at least it looks very like it *** This bug has been marked as a duplicate of 213996 ***
Erm.. > Fix confirmed here with openoffice.org-core-2.0.4-5.5.2. $ rpm -q openoffice.org-core openoffice.org-core-2.0.4-5.5.3