Hai, figured I'd make a short guide for those of you that don't like working things out.
This festival is quite simple for the most part. Some of the quests are linked to other parts of the festival, and for one particular quest I recommend working together with friends as there is a title linked to it that requires you kill a boss several times.
All NPC's and events are located in Silverspring, Dust Devil Canyon, Thunderhoof Hills.
Silverspring :
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Party Pest Control.
Speak to Ajis in central Varanas who will teleport you to the front of Varanas. The idea here is to spam click the fire to get your buff to 100. Mount up and head to the other side of the bridge and select a mouse (preferably with a low number debuff) and use the skill you were given. If your buff is higher than the mouses buff it will say "Squeek!" and give you 1/10. If your debuff is lower than the mouses then it will just subtract the value from the mouse and make you have to get more fire. Do this 10 times and return to Ajir for 1 Fire Festival Voucher. Can be done once per day.
Iron Chef.
Very simple one. Go kill either Boars or Ostrich around Varanas and collect "Ostrich meat" or "Wild Boar meat". You only need 1 item to do this quest, but it can be repeated every three hours. Once you have your meat, take it to the cooking pots in central Varanas and click on them. Wait about 2-3 seconds and then press ALT+1 or manually click the skill. You should end up with a cooked item (Items give +15% of a stat and dont stack with much). You should also recieve 2 flame runes for your trouble, these should be collected for another quest called "Drive Beast". *Note* if you burn the food on purpose you will recieve and event title called "Explosion Master".
Drive Beast.
To do this quest, there are two ways of starting it. You need either 3xFrost runes or 3xflame runes. I've no idea where the frost runes come from so I'll be using the flame runes (received from doing the meat quest). Head to Annie Garcia outside the front of Varanas. Step into the portal behind her and you'll be teleported to DDC where you should walk into the portal at the waterfall.
Once inside the instance, you will be able to click on a floating rune which will summon Thysdyr and several green NPC's. Now the idea here is not to direct DPS Thysdyr but to use the skills you get given to buff and remove debuffs from the NPC's. This quest is better to be done as a group of 6 because its harder to manage the buffs for all the NPC's.
Skill 1 : remove a debuff.
Skill 2 : remove a debuff.
Skill 3 : gives the NPC much better attack to hurt Thysdyr.
There are two versions of thysdyr you can summon, and two titles attached to the event.
Epidemic.
Coming soon.
Flame Fortune
Coming soon.
Dalanis :
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Light the Pyre!
Head outside of Dalanis and speak to the NPC. After doing so click on one of the piles of wood surrounding him. You get given a target intensity to get the fire to. Trouble is, the fire will getting hotter and cooler on its own so it must be controlled by using the two debuffs. The first will throw water on the fire to make it cooler, the fire rune will make it hotter. After the 30 seconds end you have to have the fires temperature to within +/-3 of the target. This will reward you with a voucher regardless of you winning or not, however if you win you will recieve and additional reward of something like pots.
Voucher reward :
Five vouchers will give you a reward. So far the known list of rewards are :
7 Day bank space III ticket.
500 Guild rubies.
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Just a work in progress so far. Would appreciate any help/details/corrections you guys might have

Feel free to use any of this info anywhere you want, or even take whats here and make a better, more awesome guide