OK, so perhaps I have opened a can of worms here... :-) I was thinking you had GeoTIFFs, but now that you mention roll, pitch, yaw, I'm assuming that these are not ortho rectified, correct? Also, could we continue this through regular email? My address is email@example.com.
As for the file transfer, I am not authorized to setup an ftp host on our domain. We do have another mechanism for sending files, let me do some exploring and see if I can send you a link for uploading. I have a meeting here in a few minutes so I might not get back to you 'til later today or possibly tomorrow.