To install:

Mac Users:
Move the folder "Cineblur," containing the preset, into your After Effects Presets folder located at "Applications/Adobe After Effects/Presets"

Windows Users:
Move the folder "Cineblur," containing the preset, into your After Effects Presets folder located at "C:/Program Files/Adobe/Adobe After Effects/Support Files/Presets"

Restart AE or click the little menu button in the top right of the "effects & presets" bin and click "refresh list."