There doesn't seem to be any sense to the order tlwebadm displays subclusters and agents on the load page. It would probably be a lot easier to find things if the order is consistent and sensible. See bug 7834 for how we looked at ordering for tlctl.
This is now fixed. Note that more advanced subcluster and agent names will be sorted differently in tlwebadm depending on your system's locale. This, for example, is the correct sorting in sv_SE.utf-8: a, b, c, å, ä, ö While this is the correct way in en_US.utf-8: a, ä, å, b, c, ö This is because "å" and "ä" are seen as variants of "a" here.
Order now seems to follow locale properly. Using an en_US locale, I'm getting the following expected order: * Numbers before letters * "å" sorted as a * upper and lower case sorted together * odd stuff, like € sorted after letters This matches what I see from "ls". I can see that sorting is applied to both subclusters and to agents within a subcluster.