If you are doing the Induction phase of Atkins the answer is no you cannot eat them. If you are doing a modified or other program the answer is maybe. There is a lot of controversy over the sugar alcohols right now. Some people say they stall them and others are having trouble with them causing cravings and still others have no problem at all with them.
If you are craving chocolate just whip some cream and add sf coffee syrup, they have chocolate along with many other flavors. This is really good and rich. Also if you are doing Induction only 2 to 3 tablespoons of whipped cream.
Check out the recipe forums as there are some really good ones to deal with a sweet tooth.
Good luck with this WOL and losing your unwanted pounds and gaining health.