COSC Credit Banking

[darthweezy]

I recently graduated from TESU, however, for employment reasons I need to get letter grades on my SL and SDC courses taken. To make sure I understand the credit banking at COSC correctly, if I send the grades direct from the source they will show the letter grade sent to them. The person I spoke with at COSC said essentially they give you the credit on a RA official transcript as if I were enrolling with COSC except it is only for employment/certification type reasons. 
In addition to the classes I've already taken I need to find 3 upper level English/literature courses (preferably SDC or even better if there's limited writing). 

Any ideas?