Have you read the Adobe document on Elements Organizer Backup - Restore - Move?
Could you define "main folder in Elements Version 10" and its location as well as "a small blue photo next to them".?
I can understand what you want to do, but I am not clear on how you went about doing it.
I did search for adobe artciles or instructions on moving a catalog and found nothing. I saw people stating that the backup/restore did not work a s a way to move. On my F drive I had one folder labelled pictures taht has many subfolders by date. I dragged and dropped pictures folder from F and moved to G. The folders moved but the contents are not recognized as having anything in them (no small blue icon next to them in folder list in PSE10). The photos are in the moved folders on G now. When I clicked on a moved photo in the program it said t could not find teh photo. So I am now in the (9 hour) process of moving them back to F with windows explorer. I will then try teh backup method (to G) and then restore from there I guess. Is that the recommended way to do this?