The following
limitations apply to backward compatibility for setups:
Setups that include settings
from Smoke 2009 that are not present in earlier versions
of Autodesk products can be loaded, but unrecognized
settings are ignored.
Paint
setups cannot be loaded into Retouch (this applies to pre-4.0 versions
of Smoke only).
Stabilizer
setups cannot be loaded into the Tracker (this applies to pre-4.0
versions of Smoke only).