I had meant to mention that when I looked at your test synths I saw a few things that are hurting your attempt to synth your school:
:: In many cases, your school's walls and floors do not have any distinctive visual texture or pattern to them. Photosynth's image matching works by matching visual patterns (specifically it looks for corners and blobs with unique arrangements of light around those corners and blobs), so things like concrete, gravel, stone, grass, sand, brick, tree bark, wood grain, etc. all work great, but flat white walls with no pattern on them or hundreds of brown floor tiles with no speckles visible on them or anything else to make them unique from each other gives Photosynth nothing to lock onto, visually.
If you load your test synths in either the Silverlight or the Direct3D viewer and use the [P] key to toggle to the point cloud and then use the period key [.] or [Spacebar] to advance through the photos you'll see what Photosynth tracks.