I have a few websites running in Joomla. I thought I had upgraded all of them to 2.5.8, but it turns out that I still had one on 1.5.26. Today, I uploaded the 2.5.8 to 2.5.9 upgrade to this site. Needless to say, it is seriously broken.
I'd like some advice on getting the site back online. At this point, I plan to download the full site contents, delete everything on the server, copy the 1.5.26 full install back to the server, delete the installation directory, and start copying the configuration and customization files back to the server. I'm really don't know all of the files that need to be restored.
If anyone can provide advice, I'd greatly appreciate it. You can even verbally flog me for (1) not having a current backup, and (2) not confirming what I was doing before I overwrote the server files.
Sorry, I've just got no excuse for doing something really stupid...