At this page you may purchase two unusual mounts for a price of one! These include Rusted Proto-drake and Ironbound Proto-Drake. What is cool about it is that you don't need to obtain numerous raid achievements that are in Ulduar raid. That means that there's also no need of getting a meta-achievement "Glory of the Ulduar Raider".
Here you should down towers that create the protectors on your way to the north end — where Flame is. In the process there's a chance that several mini-bosses (spiders) will go to you, but you can kill them with almost no effort. In the area where Flame is there'll some repair pads located in the west and east. You'd better repair as long as you didn't come for the achievement called Unbroken. In this area there're 2 sets of mobs. You should pull one side and down these mobs. After that, look up and make sure the passengers got enough pyrite. You'll need about 25 of them on the ground, and once it's done, pull the other group of mobs and down them. When you finish the last mob, Flame'll come to start the fighting.
Next thing is quite clear: simply DPS him. Try to use as much Pyrite as you can — that will prevent receiving powerful DPS from the boss. At some periods of time the boss will pursue a player. In this case it's vital to worry about running away instead of your powerful attack.