You should be able to get into a class at NCSU for the summer or next fall. They have a different process for students who are actually amditted to the university as a degree student and someone who just wants to take a class (which should transfer, but double check with Durham Tech first).
You can enroll through their lifelong education program at the McKimmon Center on Wetsern Boulevard and Gorman Street. Basically, anyone with a HS diploma or GED can take a class there. You just have to fill out an application and get your transcripts sent over. It's not hard at all. There are some limitations to how many clases you can take if you are enrolled through the LLE program, but you can definitely take a class.
I just enrolled there to take an editing class.
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