Method #1 - Using SB self-extracting rules installer
Simply download and run the following file:
http://www.spybotupdates.com/updates/files/spybotsd_includes.exe
Method #2 - Fully manual updating
Simply click the link below and download the file in:
C:\Program Files\Spybot - Search & Destroy\Updates
You will be prompted to "replace existing file", click [yes]
http://www.spybotupdates.com/updates/files/includes.zip
Extract includes.zip to C:\Program Files\Spybot - Search & Destroy\Includes
Now you can open Spybot and it will be up to date
Courtesy of: Lightspeed's Windows 95 Page