Note you don't need to download this from GAOTD - you can do the following:
Go to: http://www.paragon-softwa.../registration/db9pro.html
and regsiter (I presume this is 1 day time limited).
You get registration details by email and a login to the user area where you can download the full installer without the GAOTD wrapper.
The Paragon website gives the following compatibility information but there is some debate on GAOTD as to whether the free version actually has the 64-bit support. I can't test it because I don't have a 64 bit OS installed at the moment.
Supported Operating Systems
* Windows Vista (32/64-bit)
* Windows XP Professional (32/64-bit)
* Windows XP Home
* Windows 2000 Professional
* For server operating systems backup see Paragon Drive Backup Server Edition
Supported Hard Drives and Removable Media
* Parallel ATA (IDE) HDD
* Serial ATA (SATA) HDD
* SCSI HDD
* All levels of SCSI, IDE and SATA RAID controllers
* DVD+/-R (DL)
* USB 1.x/2.0 and IEEE 1394 (FireWire) devices
* PC card storage devices