Well I went down to the new mooring location with all new chains and shckles, figured it would be a easy job. All I had to do is follow the current rope/chain to the Boiler Plate that was being used as the anchor, undo the current rope/chain and attach the new, simple right ::)
holly Cluster $%%^^%$# :o 3 hours later, two abanden lobster pots, boat trim and multiple inknown misc items and all of this rope :o tangled and noted up all around the location

The tides came way up, and visibility went from good to about 2 inches. *:-[ I finaly find the main rope, dig about 3 feet into the muck/sand and find out there is no eye to attach the new chain to. Seeing I can only hold my breath long enough to get down there and work for a few seconds, I have a freind, "worse Mate" who is going to get his tank and dive on it today.
The only plus thing is after untangling all the rope I did make out with a few nice ropes ;D