export/import issue

Hello everybody,
I want to share with you something about export/import process of WP 2.7.1

1. Begin
site #1: http://www.somedomain.com, wp 2.7.1, 400 pages, 10 posts
site #2: localhost with apache, php, mysql up and running

2. Process
On site #1 I’ve made backup of mysql database through the phpmyadmin and I transfer all files from site #1 to my computer, localhost (site #2)

3. Result
I’ve launched the site on local apache server and I don’t see any pages or posts on site and in admin panel.

4. Solution
Switch permalinks to default option.

5. Problem
Don’t know yet this: if I add something on local site and import it to http://www.somedomain.com – how permalinks will look like after moving back?

Any ideas?