What type of visa did she get (Non-Imm Ed)? Does it cover the entire length of her stay? Does she have a supporting cover letter, from the educational institution?

I have two "one-year, multiple-entry Non-Immigrant B" (business) visas issued in the U.S., and neither has my name? It's just a full-page stamp with all the unique details hand-written, along with stamps for fee paid and a large red garuda stamp for that consulate.

My assumption would be that the OPs friend will not have any issues, assuming the misspelling is limited in nature, but one always hears horror stories, and fake documents are a real concern here. Short of having the visa re-issued I would make every attempt to have as much supporting documentation available if a problem arises. This would include a letter from the Consul officer who issued the visa. However this situation should not be highlighted upon entry, just keep quiet and answer only those questions asked of you.