Quick Search won't work with Russian. I've looked up MySQL tables encodings and it seems to be all right. My guess is that QS malfunctions because it uses full text search method. How can I disable it?

you just upload the new files right over the old ones

upload full distrib of serenditipy in root directory blog?

How I can upgrading serendipity?

in FAQ "Then go to your Serendipity Admin Panel, and you will see the Serendipity upgrader."

but I cant see nothing like "Serendipity upgrader"