Downgrading WordPress

UPDATED Nineteen Labs move in to a new server. This also means downgrade WordPress from 2.2 to 2.0.x version, because the new server have a lower database version. Here is a few steps to downgrade WordPress :
1. backup an old WordPress that you want to downgrade. Export this to a sql file. Do not choose ‘ADD DROP TABLE’ option
2. Install a new WordPress which is lower from a current version
3. open a WordPress database using phpmyadmin
4. open the sql file in notepad, and checks every structures between your sql and current WordPress’ database. If they are same, goes to the next step
5. open a table wp_options and find a url options, types current WordPress url
6. import the sql file into a current WordPress database
7. open or refresh Wordpress, try to login to your WordPress
8. Check your posts, because there are ASCII character errors occasionally found in wordpress posts
9. Downgrade succesful