Will Vegas support 24p pulldownd on AVCHCD files form Canon HF-S100 or is Neoscene still the way to go?

Thanks,

Frank

I would really like to know the answer to this question as well.

and the 24p pull downs for the Canon HV20?

you need to talk to Canon about that. They don't flag their pulldown on their consumer cams they they do with the pro level cams.