Sprite interval problems

[lulusdad]

Okay, so I'm a moron even after having read the previous posts on this subject, I just can't figure it out. I've tried several feeble attempts at changing my sprite interval to a lesser time,but just can't seem to accomplish this. I'm on a G4 and up to date Panther using G-Force Gold thru iTunes. I'm in the G-Force Preferences(iTunes).txt file and this is what I see:
SInt="6 * 60 * ( rnd(1) + rnd(1) + rnd(1) ) / 3 + 120"
My sprites appear every 5 minutes and I'd like to change them to every 2 minutes. And then I'd like to change the duration from 30 seconds to about 60. This is the code I believe specifies that:
SDur="20 + rnd( 20 )"
What do I need to change? Any light shed on this would be greatly appreciated. I really like the new version. A million thanks, Andy!