Ron,
The flies are mounted on a piece of heavy white watercolor paper (I like the crisp white background, and texture of the surface). I used a heavy needle (left over from the thanksgiving turkey) to poke holed in the paper (one pair of holed for each fly), then used a long strand of fine copper wire (ribbing) to essentially hold the flies in place.
After doing this, I would recommend planning out the holes better. Angle the holes so that the wired runs thru the eye of the hook at the proper angle to display the fly. In this case, I ran most of the holes horizontal (east-west), but wish I had run some of them at a diagonal (perpendicular to the bend of the hook eye).
If you have some fine silver stainless wire, that would work even better and blend in better with the background.
You can also do loops at the bend of the hook, to provide two points of contact, preventing the hooks from ever moving out of place in the future.
As you weave the wire thru the paper and flies, it can be taped down on the back side for added security.
Here is another way of mounting a single fly:
viewtopic.php?f=19&t=5385&p=100732#p100732
Good luck, and please share your finished set of framed flies.
Have Fun!