These are all lat/long formatted HDRIs. Generally the .zip files have large, medium, small and small-blurry versions of the images. The small-blurry ones are intended for lighting, while the others can be used for either reflections or lighting. These are free to use in whatever you like, although if you use it in something cool, I'd appreciate it if you sent me an image or an email :) These images may not be REdistributed without written consent, though.
The ones noted as two-point were shot from two angles and have as much of myself and the camera/mirror ball equipement painted out as I could. The ones noted as one-point were shot as a single sequence of images, and still have me, the camera, and mirror-ball stand in them.