I have tried to find fafnir in the hunt in the parama rift but no mattew how much i try, i can't get him to appear, also how do you get a ribbon?

OK, so I finally found a little Hunt Specific guide to help with your question.

In order to find Fafnir you MUST do the following:
After speaking to Relj outside the Mt Bur-Omisace Temple, the Blizzard Strom will start in the Paramina Rift.
Now you MUST follow a specific route for the Blizzard to continue. The specific route is as follows:

1. Freezing Gorge
2. Head of the Silverflow
3. Icebound Flow
4. Karydine Glacier
5. Silverflow's End

This, as I've already said, is the only way to make the Blizzard Storm continue. Fafnir will only appear inside a Blizzard Storm (I'm presuming that last bit though).
You should now be able to fight, and hopefully defeat, Fafnir.

As for the Ribbon question. I presume you must be able to end up buying them from somewhere at some point, I'll go have a look now though.
If not, then there may be certain places you can find them as Treasure, or Steal/Poach them from an enemy.
Give us about 10 minutes, tops, and I'll see what I can find.

Jay
Site Squad

Right I've found an Accessory Specific Guide that, hopefully, details everywhere you can get a Ribbon from.
I'm copying this bit of the guide relating to a Ribbon directly so the credit goes to a member of another website called Sephirusoy

I really hope this helps.

Note: The maps have been linked directly for you to look at as we don't give links to other gaming related sites.

Jay
Site Squad
p.s. Your best bet is probably trying for the Lv99 Red Chocobo as it's easy to get a chain of the Black Chocobos just outside the Garif Village of Jahara (in the Ozmone Plains).

==========-------------------------
Ribbon = Immune to many bad statuses
==========-------------------------

1. Treasure in Cerobi Steppe/ Crossfield
   • Story reached Balfonheim.
   • Equip Diamond Armlet.
   
   
   
2. Treasure in Subterra
   • Story passed Pharos at Ridorana.
   • Take the Dais of Ascendance at 1F to Subterra.
   • Fill enough Black Orbs to each altars in B1F (Penumbra) to unlock B2F.
   • Fill enough Black Orbs to each altars in B2F (Umbra) to unlock B3F.
   • The treasure is in the North-West room of B3F (Abyssal).
   • Do not equip Diamond Armlet
   
   
   
3. Treasure in Henne Mines
   • Clear Mindflayer rank B/IV mob hunt.
   • Collect 10 Espers or more.
   • Talk to the geomancer in Jahara to unlock the secret area.
   • Find the treasure 2 display in the map.
   • Do not equip Diamond Armlet.
4. Drops:
   1. Lv99 Red Chocobo ............. Ozmone Plains/ Haulo Greens
      • Chain the chocobos in the sections near Jahara.
      • Lv99 Red Chocobo has a low chance to show up after defeating all chocobos around.
   2. Vishno ....................... Pharos at Ridorana/ First Ascent
      • It's a rare monster, will have a random chance to show up after defeating certain amount of Brainpan and Deidar.
      • And the chance of dropping Ribbon is very rare.