tamba2.org.uk/wordpress/
Look in the ‘moving’ section… step by step guides to moving everything around.
Your best bet is to password protect your blog directory, then no one can get in at all.
Ulrika, this can be done as you wish, but may be a little bit of a kludge…
codex.wordpress.org/The_Loop
You can use a couple of IF statements to filter out the archive page.
Use an if(is archive) to call an instance of the loop that only displays your diary category.
If you need more detailed help, drop me a mail, and I’ll see what I can do!
