Different banks report dates in different formats. For example, the most of North American banks use MM/DD/YY format and a lot of European banks - DD-MM-YY. AceMoney can't detect the date format automatically and parses it based on user defined format of dates. This setting can be changed in the International Settings dialog (Tools menu). In order to allow AceMoney parse QIF files right, you must select an appropriate date format and import the file again.