Okay... just watched the video and the only thing that, to me, is not explainable is when that one clip number switches from one number (8 I think) to 10... but I may have overlooked why that might be.
So going through the stuff one at a time...
The first clips you recorded into track one are stereo clips so it is naming them in multiples of 2 because although they are one clip they are 2 recordings (left and right). Perhaps if you split the clip to mono they would show up as 1 and 2... not sure.
Then when you record in the second track you are recording as mono so the clip number only goes up in crements of one. Remember those numbers represent the RECORD number and technically a stereo track is two individual recordings.
As far as when you changed the clip name in Clip Properties and it not being updated in the Browser, did you refresh the Browser (I think you just hit F5 but I think you can navigate away from the folder then back). I don't think the Browser auto refreshes but I am not certain.
Anyway, I was talking about getting right inside the folder outside of Sonar using Windows Explorer, not the Sonar Browser, to search and sort your files. As I said, between the Date and Time sort options it's not too hard to hunt down specific clip/recordings.
That thing that happened when the clip name changed to (10) though was indeed odd but someone smarter than I could perhaps watch the vid and find a reason for it.
Edit: Okay, I just saw the discrepancy between the names right on the clips and what is being shown in the browser. That is screwed up and I wouldn't mind knowing what the reason is. If you found out the answer please update the thread and post it.
Cheers.