I had a similar "frozen egg" experience last year.

The advice I was given was to prepare a borax/salt/sugar solution as outlined in the Tips section of this BB (a cup of each in two quarts of water). Place the frozen egg skiens into the solution and leave them there until they're completely thawed. This will thaw the eggs and cure them in one step. If you want them dyed, be sure to add some Pro-cure bait dye to the solution. Strain and dry them on paper towels, cut into golf ball sized chunks, roll them in Borax and store them in the freezer. My experience was good and the eggs came out just fine. However, they milk out rather quickly once they're on a hook so change them often when you're fishing. Good luck.