The oh so delicious Control Flame manipulates "non-living fire ... that is not controlled by a creature."
Do zones, non-sustained zones, environmental effects, and/or torches count?
I'd treat the "controlled by a creature" part as any instance of a flame that is either:
I'd exclude flames that:
E.g.: one of the Kobold SlingerDDI's special ammunition sets the target on fire. Even if the target's equipment could be enveloped in flame, I don't think we could consider it as "part of the equipment". Also, the slinger has no more control on the flame (the kobold cannot sustain it).
The way I would read this: Any fire is a viable target, as long as its manipulation would not conflict with the intent of the caster of the source of the fire.
If the torch is a normal torch, then fine. If the torch is a magical torch, you can't control it. Same with a Zone, or non-sustained zones. You can't use this power to negate the zone.