Okay, I'm missing something obvious here, as I don't see any options for "comments" anywhere.
Upgrade GP? Check.
Download / upload 1.3 of Simple Blog? Check
Go to Admin/plug in manager -- 1.2.1 of "Simple Blog" shows up, 1.3 of "Simple_Blog" does not...and 1.2.1 still points to "simple blog" directory rather than "simple_blog" directory.
I'm worried in doing all this I'm going to lose my five detailed blog entries and won't be able to get them back easily...it took me a while to get the formatting right on them, as default OLD styles seem to have been embedded inline for some reason I can't fathom and changing the CSS wasn't changing the entry properly.
Thoughts, anyone? Do I have to "uninstall" 1.2.1?
I knew I was missing something easy -- when I D/Led, it created a folder called Simple_Blog. Within that, there was ANOTHER directory called Simple_Blog...it basically nested itself one level too far down. When I uploaded, it couldn't find anything.
I did get it working, but all my previous posts were gone...fortunately, I had backed up earlier so could find the post_0.php file from that, but when I copied it over, the new blog wouldn't recognize it, since it has a different file structure. Should include a warning I think for this one that upgrading involves a new installation, rather than simple upgrade (unless there was another migratory option I didn't see).
All you need to do is put the files from the new Simple Blog plugin into your existing system. On your installation you probably have the files in /addons/Simple Blog. So instead of creating /addons/Simple_Blog, just put all those files in the existing folder.
Then, there is actually one more step, go to your "Plugins" page and go through the "Upgrade" process for the plugin.