I've just noticed that the Search This Blog option (top left of the page) only searches my current posts. I had to search for the name of a pub I'd been too a few months ago and though I knew the title of the post search returned back an empty result. I ended up loading each month I thought it was in and searching the page.
Template import has not been made available yet and the spell checker still wont let me click away from it's list of options. Blogger Buzz is rather quiet with only two posts (non beta related) since the beta announcement.
I shouldn't complain, it is after all Blogger BETA.