Heres a quick one I threw together for all those people first setting up PS and need to remove bogus test orders. My inspiration was this post http://www.prestashop.com/forums/viewthread/7828/ where there seemed to be lots of confusion.
I’ve tested this on v22.214.171.124 (Should work on 1.2, but not tested)
See the module instructions for exact info.
You have to check a box inside the config page, then click submit, only then will the orders be deleted.
You should uninstall/delete this module once your stores in production as it deletes ALL ORDERS!
Can be downloaded from http://attendview.com/deletetestorders.tar
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