The title is a little kinder than it ought to be.
I committed some big mistakes, notably:
1) Upgrading to 1.3.7 *at*the*same*time* as moving my web hosting provider (to phpwebhosting.com)
2) Not knowing what version I was at (I was at 1.3.5, tried to apply the patch to 1.3.6, was never sure if it took.)I dumped the MySQL schema, and sourced it on the new system.
I copied over all the "hacks", etc.
I made the changes to config.php and lib-common.php.
I went to http://sitename/admin/install/install.php, answered the questions, and tried telling it I had version 1.3.5...it errored, saying I had the static pages table already. So I told it I had version 1.3.6.
It gave me the congratulatory message.
(Alas, but somewhere in here, there may have been some DNS flakiness, where there were occasional references to my old provider...don't know for sure.)
In any case, now, when I log in, my username appears in the who's logged in block, but...
I don't get the Admin block.
I don't get the User block.
I don't have a logout button.
Clearly, there are many ways I may have messed this up. But does anyone know how to get it back...(Worst case scenario, I guess I can delete the database, recreate it from the dump, and try the upgrade again, but I figure there may be a simpler solution.)