Hi!
You do not need to create a new "Serendipity" folder! You only need to move all contents from there to "/". Mark all files within the folder and move them; do not move the folder itself, because that would not move any file - target and destination would be the same.
You do want to put serendipity into the root AKA "/", right?
Is the meta redirect a good option? If I did that method, I believe I would use the index.php instead of index.html? Is that correct? And I would edit that file in a program such as Notpad? But how would I save it in the correct php format, if that makes sense? And where in the file would I insert the redirect?
Redirection would also work, but it's nicer to put s9y where you want it to be; not to redirect stuff up and around
Best regards,
Garvin