can I use cream sherry instead of dry sherry?

I did not want to chance it so i bought some dry sherry.. Cake is delicious. I may try it with the cream sherry sometime and use less sugar to compare the two.

I'm with Dr. Babs on this: do substitute, but cut back on the large amount of sugar in the cake to compensate for the added sweetness.

I wouldn't. Cream sherry is VERY sweet. Dry Sherry, as the name infers, is not. It will definitely change the character of the cake. If all you want it for is liquid to measure, then it doesn't matter what you use. You could sub out water...

I haven't made this cake, but I substitute cream sherry for dry sherry all the time. It will likely make the cake a little sweeter. With two cups of sugar, it's a pretty sweet cake. You might want to cut back a tablespoon or two to compensate.