[Zope] Datetime overflow error

Help!! I have created two SQL Methods which will prompt users for dates (among other variables) and ideally will return jobs between those dates. When I test these two Methods I get "datetime overflow error". The dates are stored in our informix database as ddmmyy and yyyy-mm-dd 0:00. Would appreciate any advice on how to get this to work ... Regards -- Jenny Campbell User Support - Applications Eastern Equities Limited Ph: 06-876 7943 Fax: 06-876 8811 ---------------------------------