MicroSD: New Card Issues

Thanks for the help and info. I'm working through my source code to work with this library instead of the SD. I have much of the conversion done, but I have a few methods I was using that I'm not sure are the equivalent for the SdFat library. Is there some documentation available that will show me the methods available? Specifically, I need equivalent of these: Create directory, delete file and/or overwrite a file, check if a file is in existence.

-John