Yes, but …..
Import the sql, then run /upgrade.php before doing anything else on the blog.
If that fails, set up a testblog with the older version, import into that, upgrade that testblog, export the data and then import into your proper blog.
Just keep backups of the sql file in case something odd happens during the process.
Hmm I’m a bit of a sql virgin…how exactly can I import the sql?
http://www.tamba2.org.uk/wordpress/backup/
Restore is halfway down.
Hit any issues. post back 🙂
What about from FIVE WP installs into one? Do they have unique IDs or will they overwrite each other?
I used to use multiple installs to make “sections” for WP sites (before WP 1.5 and Pages etc.), but now to add plugins and upgrade WP I need to do it 5 times. Also, I’d like the plugin to work in every section, not just the one I’d installed it in.
In other words, do the different posts from the different WP installs have unique IDs or will they overwrite each other?
Thanks for any tips.
– Bradley
