By the way, what Swami Worldtraveler is talking about is when you see the progress bar in the synther (the photo uploader) stick at the end with a message about "Publishing Synth". This should almost never happen to you, though. Usually your synths are available for viewing and editing immediately after the synth data finishes uploading.
Since you were able to upload multiple synths, I'm guessing that's not what you were experiencing, but rather just not seeing your synths because of the confusion from the profile page tabs.
Using the synth editor on the site, you can pin your synths on the map, line up the biggest point cloud in your synth with the objects they represent in satellite imagery, add or change tags or description that you forgot to add before uploading, change which image is the first to load when people view your synth, add 'Highlights' which shows your favorite photos in the synth along the right hand side of the synth, and other advanced options.