Just upgraded this site to Drupal 5.1, as some core bugs and security vulnerability was fixed from the old 5.0 version. Upgrade is highly advisable.
Since there is no database change, the upgrade is pretty straight forward.
Here are my steps:
- Move sandrorafael.com directory to another directory as backup
mv sandrorafaeldotcom sandrorafaeldotcom-backup-20070130
wget http://ftp.osuosl.org/pub/drupal/files/projects/drupal-5.1.tar.gz
tar -xzvf drupal-5.1.tar.gz
mv drupal-5.1 sandrorafaeldotcom
cp -Rf sandrorafaeldotcom-backup-20070130/sites/ sandrorafaeldotcom/
cp sandrorafaeldotcom-backup-20070130/.htaccess sandrorafaeldotcom/
cp -R sandrorafaeldotcom-backup-20070130/files sandrorafaeldotcom/
That's it! Within minutes your new Drupal is up and running. Just test it properly by exploring especially the admin area and if possible try to post new entry, just like what I'm doing right now.
Any problem you encounter, let me know, maybe I can help :)