I am nearly finished installing the latest version of WordPress on my several WordPress sites. The biggest issue was, of course, making sure all the files got uploaded correctly. Inevitably one folder or another glitches out on me, so I’ve taken to uploading certain folders separately.
Also, the occasional glitch I had was solved by deleting the old files in question and replacing them with the fresh new ones, just like it says in the upgrade guide.
Edit: WordPress tells me this is post 100. I suppose that’s cause for some sort of celebration. *grin*