No worries. :)
What I meant is that it has been part of the Photosynth vision from the beginning to combine synths of the same place or thing with each other as well as linking synths that sit right next to each other on the map to each other. Unfortunately this requires a lot of work for the Photosynth team and rather than make people wait to try Photosynth until the team had that 'linking' part finished, they let us at least begin making our own synths, even if they're a little isolated at present.
Since we've been able to upload our own photos (2008 August 20) people who had been watching Photosynth since it was announced were a little sad that, for example, Eiffel Tower synth 1 from me and Eiffel Tower 2 synth from someone else weren't automatically combined yet.
No firm announcements have been made as to when we'll see synth linking released and I don't know if it will be completely automatic or much of anything else about it.