Upgrading My WordPress:
Click new version download from their webpage in safari. In downloads window right click and get URL of download. ssh to zoo, wget address from above. Unzip in temp direcoty and rename wordpress folder as wordpress-x.y.z . Move that dir into public_html
ln -s wordpress-x.y.x wordpress
cd wordpress-x.y.x
mv wp-content wp-content.orig
cp ../wordpress/magicscript.php .
cp ../wordpress/defaultmenu.html .
ln -s ../wordpress-2.8/wp-content wp-content
ln -s ../wordpress-2.8/wp-upload wp-upload
ln -s ../wordpress-2.8/wp-config.php wp-config.php
mv index.php default.php
cd ..
ln -sf wordpress-x.y.z wordpress