No it doesn’t mean you have a rootkit on your system, just that the Behavior Shield will be monitoring for them, that is what the =1 (in all of the instances) is On =0 would be off.

That isn’t actually the Behavior Shield log but the instructions file.
The actual log (report) is here in XP C:\Documents and Settings\All Users\Application Data\AVAST Software\Avast\report\BehaviorShield.txt