hrmmm.. well if you are seriously interested in getting into the industry
then do this...
1.) go here.. read EVERYthing.. and you'll have an understanding of it... when you finish reading all that shit, and ONLY when you finish reading all that shit.. you can hit me up on icq with specific questions if you like.... good luck
p.s. you will need money for scripts/hosting/traffic etc to get started also... so if you don't have a few hundred bucks (i recommend a grand) disposable, don't waste your time