Terrypayton:
If copper wire does not get gray/silvered it means that there is not any silver in solution,so pour off the liquid,filter the mud and dry it by any known method(you can just put it in the sun).This mud is a mixure of sulphides(among silver sulphide) and sulphur.
You can use my process for silver sulphide or you can use AR to convert all sulphides into chlorides so you will get silver chloride+sulphur,as a gray mud but the only way to convert it to metallic silver is melting with sodium carbonate,I do not know why but do not use cementation,lye or any other process to convert it to metallic silver,probably sulphur interferes with these processes.
Keep us posted about your progress.
Kindest regrads.
Manuel