Problem creating a tomcat 6 server in eclipse form Ubuntu

sudo apt-get install tomcat6
cd /usr/share/tomcat6
sudo ln -s /var/lib/tomcat6/conf conf
sudo ln -s /etc/tomcat6/policy.d/03catalina.policy conf/catalina.policy
sudo ln -s /var/log/tomcat6 log
sudo chmod -R 777 /usr/share/tomcat6/conf

$ ls -g -o /var/lib/tomcat6
lrwxrwxrwx 1   22 2010-07-20 18:15 bin -> /usr/share/tomcat6/bin
drwxr-xr-x 3 4096 2010-07-20 12:22 common
lrwxrwxrwx 1   12 2010-07-20 12:22 conf -> /etc/tomcat6
lrwxrwxrwx 1   22 2010-07-20 18:14 lib -> /usr/share/tomcat6/lib
lrwxrwxrwx 1   17 2010-07-20 12:22 logs -> ../../log/tomcat6
drwxr-xr-x 3 4096 2010-07-20 12:22 server
drwxr-xr-x 3 4096 2010-07-20 12:22 shared
drwxrwxr-x 3 4096 2010-07-20 12:22 webapps
lrwxrwxrwx 1   19 2010-07-20 12:22 work -> ../../cache/tomcat6

cd /var/lib/tomcat6/conf
chmod -R a+xrw *