I am hearing that the resort is filling up. When I was there last week, they mentioned doing some "Boatels" which would be staying aboard a houseboat in the marina, so ask about them!
Other alternatives:
Pinehurst Lodge:
US 127 S.
Jamestown, KY 42629
270-343-4143
This place is about 6 miles from the ramp at Jamestown resort.
Timber Points: 270-343-2267
This place is about a half mile from the resort and the ramp.
Jamestown Lake Cumberland State Park:
5465 State Park Road
Jamestown, KY 42629
1-800-325-1709
This place is directly across from Jamestown, so you could commute by boat!