Using Labels in Blogger

I just realized that all of my tags (or labels as Blogger calls them) weren't working. The labels are the "key words" that appear below each post, which will basically help you, the reader, browse my posts by subject. Anyway, I was just typing them in when I would post - but apparently they need to be separated by a comma.... Ugh, so now I need to go back through all my posts to fix them. Seems stupid that it wouldn't be smart enough to separate them by itself or at least prompt the user a little better as to the preferred format.