You mean the Felyne Comrades or Otomo Airu in japanese version.
Well, it's quite simple. Download the file from our download section -> http://www.mhf3.com/page/Download+Quests <- and copy the file into folder indicated by the image do link.
By doing so, you should obtain all the downloadable titles, quests and the Felynes. After putting the file into your PSP just go to Yukumo Village and talk with the Crazy Old Cat Woman. In the option "Download". There will be all of the downloaded Comrades. I recommend you get the two one which are already in level 20.
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i agree with stone they are flying wyverns becase they dont fint closely enoght into anything else

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When I need them I go out hunting down some Nargacugas or Tigrexs Low Rank. It's the same for Hard Monster Bone(High Rank). It's not quite easy you know xD
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It's said in the page that they are not included. You can connect to the internet in your PSP and download them in the menu option "Downloads". But to do this you have to change the encrypting of your internet router to WAP if my mind are not cheating me right now.

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it would be a pain in the ass to get it though

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Yes, you are right. But it's already known that all the "normal areas" of the game has a secret area... Volcano, Tundra, Mountain, Islands and Dunes, all of them posses a secret area only accessible at the begging of the High Rank quests. You can also take the "Felyne Explorer" from the felyne drinks skills which improves heavily the chance of start at that areas.

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Just go out and smash some Silver Rathalos Faces and server it's tails. If you have an set which gives 'Great Luck' (Like the Gold Moon set) use it. You can get it more easily in the quest rewards. Or even use the skill capture guru and go for it. You should have to do 1 to 2 runs to got one or more. And If you are a Gunner, just send me a message and I could give you some info about some set that you can use to farm tails. ^^
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I can't see this page and let @hellkite527 say that kind of set for the incredible Akantor Wrath (Bow)...
The best choice for bows are the Rapid S Up as it does increased damage by the number of hits in the weak spot (Stinger rules). As the pierce is good for large enemies it's not recommended to use with Stinger because it only take effect in ONE specific spot of the boss body.
All can I say is that for Akantor Wrath, the best set probably is:

Barrage Piercing Earrings ---
Silver Soul Vest OO Blow +1, Blow +1
Silver Soul Guards OOO FAst Charge +4
Silver Soul Coat OO Health +2, FastCharge +1
Silver Soul Leggings OOO Normal S Up +4
Akantor Wrath ---
Talisman with +5 FastCharge +9 Attack (Don't be afraid, it exists, got one after 100 hours farming in the HR "deliver the paw pass ticket" in the volcano).

Active Skills:
Load Up
Attack Up (M)
Normal S Up
Stinger
Focus

*If you think this set is absolutely no good, try it. If you think "THIS TALISMAN IS A DEVILISH HARD THING TO OBTAIN", maybe you should think that you are going to be a devilish hard TO BEAT thing.

** All sets you need, just ask me in my profile. If the set you want is for the use with a bow, the response maybe come faster then you can imagine...

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This is the skill "Pellet Up". increase the power of all damage that came from pellet Shells. I never heard about it increase the power of gun lance shots. I know that the skill "Gunnery King" does it.

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