Yes, Cincinnati State still has an evening LPN program. I am getting ready to graduate from it in April. Some of the Oaks campuses only have day classes, others only have evening classes. Some have both. If you look on Cincinnati State's website, you can look up more information about the program. It tells you which campuses offer evenings and which offer days. I'm not sure where you live, but I attend Live Oaks in Milford, and they only do evenings.
To apply to the program, you need to fill out the online application to Cincinnati State. It's free, just complete it online. Then you need to attend an information session (a list of dates on their website), take the Compass test if you don't have transfer credit, and meet an advisor. If you place into any developmental courses with the Compass test, you will need to take those before you can start the actual program.
As for working during the day and attending class at night, I've done it the whole way through the program, but it's been HARD. We had some students who started out trying to work full-time, and of those, only one is left. Most of us work part-time, though. I think only about three students in my whole class don't work at all. People will try to tell you not to work when in nursing school, but the truth is some of us have no choice. I still needed a paycheck even though I decided to go back to school. I also have two small children at home, as do several of my classmates, which makes it a lot harder. But it's totally doable. Good luck!