Importing mono files to Pro Tools 8, cant do it without converting to stereo?

I had someone record drums and I believe they used garage band. They sent them to me as aiff and wavs. Kick, Snare, bass drum, etc. When I go to file import audio they are forced to convert them to stereo, but I want to keep them mono so I can pan the bass drum to one side and the snare to another, etc. What shoud I do?