installation

Hello all,
i am new to postgresql, i want to create tables in this

i have followed
10 Steps to Installing PostgreSQL which is chapter two of installing
postgresql

i could follow upto step no 7
but i am getting errors from step 8
while following the steps i got message like postgresql is
sucessfully installed

now my doubt if it is installed, how should i start working on it
i used
sudo su postgres -c psql template1
password for my super user:**********
then the prompt changed to postgres=#

what does this implies can i start working on that or do i have to
modify furthur

sorry for such a long mail and Thanks for any help!!!!!!!

Thanks & Regards
kusuma.p