Awww... the Vulpix looks so cute there... Anyways, I always found it a shame that Brock releases his Vulpix when it evolves into Ninetales in Season 4 or something... Other than that, Ninetales only appeared in two other episodes: one was "Riddle Me This", the one where Ash atarted his battle with Blaine, and the other was the one I mentioned before and forgot the title... It starred an old and lonely Ninetales who lived in a mansion and created all sorts of illusions in it. The truth is that it missed its trainer who used to live there.
Anyways, I agree with that suggested moveset... I have/used to have three Ninetales: one in Ruby, one in Leaf Green, and one in Net Battle. The movesets I have for each are:
Ruby Ninetales (Vixen): Flamethrower, Confuse Ray, Will-O-Wisp, Dig
Leaf Green Ninetales (Katesui): Flamethrower, Confuse Ray, Will-O-Wisp, Quick Attack
Net Battle Ninetales (Hi-Nyi): Flamethrower, Confuse Ray, Will-O-Wisp, Hidden Power (Grass)
^^Yes, Flamethrower/Confuse Ray/Will-O-Wisp is a good combo for Ninetales. The only other good options for an attack move are, though, Dig, Shadow Ball, and hopefully Hidden Power. I wish it could learn Faint Attack or some sort of psychic move...