I can't give a specific answer, but I believe that the top row of knobs are your main controls. The bottom row of knobbies are modulating your modulation as it were, so it may help to set all the bottom row of knobs to zero and just use the top row and see what the top row does before tweaking the ones on the bottom. I have taken a bit of a liberty and pasted in the settings to a very nice phaser sound that Burger666 posted (I can't find the actual post). Mr Burger (Brett Kingman) is well known for (in my opinion) doing some of the best demos on the internet. I use this preset to do a very poor 'Catch the Rainbow' impersonation by some bloke called Ritchie Blackmore.
PHASE; Intensity – 18; Type – Positive; Depth – 99; Speed – .90; Shape – Sine; XKnob – 2; DMod – 0; S-Mod – 0; Mod Rate – .12; Mod Source – Sine.