FumeFx Follow, PFlow

[Grury]

I was wondering if anyone figured out a way to have an animatable influence on the FumeFx Follow Op.
Although it does create keyframes when I change the Velocity Multiplier or Influence values, it changes the values globally for all the keyframes.

Also whenever I try to use a Age Test or Delete by Particle Age Max totally crashes.

I'm working with Max 2008, have this bugs being fixed in 2009??

Thanks,

Carlos