The normal KLIMB Ohio setup should have installed the Licking County Region. To install additional regions you can either click on the desired region on the map or on its entry in the table. After downloading then running the file, it will create the Ohio Zone if it doesn't exist and install the selected region.

Note, only the Licking County Region has detailed road and intersection data. The other regions have a sparser coverage, usually a system of paved roads about five miles apart. This is perfectly useable and gives you a nice introduction to a region, but a local, serious biker would probably want to add in more data.

OHIO ZONE

OHIO ZONE
Region	Windows Setup	Source
Licking County	setup_licking.exe (6.8 mb)	licking.zip (6.5 mb)
Athens County	setup_athens.exe (9.7 mb)	athens.zip (9.6 mb)
Coshocton County	setup_coshocton.exe (7.9 mb)	coshocton.zip (7.7 mb)
Crawford County	setup_crawford.exe (4.0 mb)	crawford.zip (3.8 mb)
Delaware County	setup_delaware.exe (4.2 mb)	delaware.zip (4.0 mb)
Fairfield County	setup_fairfield.exe (7.4 mb)	fairfield.zip (7.2 mb)
Franklin County	setup_franklin.exe (4.8 mb)	franklin.zip (4.5 mb)
Hocking County	setup_hocking.exe (9.9 mb)	hocking.zip (9.7 mb)
Knox County	setup_knox.exe (6.9 mb)	knox.zip (6.7 mb)
Morgan County	setup_morgan.exe (7.8 mb)	morgan.zip (7.6 mb)
Muskingum County	setup_muskingum.exe (7.8 mb)	muskingum.zip (7.6 mb)
Pickaway County	setup_pickaway.exe (4.1 mb)	pickaway.zip (3.9 mb)
Richland County	setup_richland.exe (6.9 mb)	richland.zip (6.7 mb)
Ross County	setup_ross.exe (6.2 mb)	ross.zip (6.0 mb)
Wayne County	setup_wayne.exe (6.7 mb)	wayne.zip (6.7 mb)