I have made a couple of overdue upgrades to the site:

1. Long months ago, I made a tryst with my readers and today the time has come when I have redeemed my pledge.  When the upgrade to 4.0 started, I had promised my readers that my old permalinks would continue to remain valid. Now they are. I have redirected all of them to the new permalinks. That will also help me get google juice that used to get directed to those links.
2. WordPress has been upgraded to v 2.3.1. I can now use tags. I don’t know what else I can use, but there you are.