new user (need help: fedora core 4)

["Jasbinder Bali" <jsbali@xxxxxxxxx>]

Hi,
I'm a new user of Postgresql and using it on Fedora core 4. After following all the installation steps and completing them successfully, I'm in a confusion. How do i actually work on the database after starting the postgres service at the command line.
I can sense that i have to use something called webmin. Whats that and how do i use that   on fedora core 4. Please help

~Jas