PJ,
Was the quilt tied or did you quilt it with embroidery threat? I suspect the latter. If so, one solution would be to requilt it with quilting thread, pulling out stitches from one block at a time, then moving to the next block to requilt.
My question is, if the quilt is 20 years old and you are no longer a newbie, why not surprise your daughter with a new quilt using all of the new techniques, designs and tools.
Suzanne