Reverse lookup zone of 16 bit – Windows 2008

In Windows 2003, the reverse lookup zones of 16bit, have the following structure (i.e) :
*10.0.in-addr.arpa zone
**0 – “folder” for 10.0.0.x records
**1 – “folder” for 10.0.1.x records
… etc

In Windows 2008, the same reverse lookup zones have only records and no “folders” for the subnets. Why and is it possible to have the same “layout” as in Windows 2003 ? How ? Thank you for your help, it is very much appreciated.