Not to be the "technical Terms" police, fletching refers collectively to the fins or vanes the help stabilize an arrow in flight.
Vanes are what you are what you re referring to and are generally not used on Trad. bows because they will hit the rest and "kick" the arrow and are not as accurate. Feathers are flexible and do not effect the flight of the arrow as much and are more forgiving.
You can get them redone with feathers for a pretty reasonable price at a decent shop. Although you may be able to get away with using them if you use a rest, I would have feathers put on them just to eliminate any issues you may have.