Creating a login screen

Howdy, I was wondering about how to do this. I am currently paying for a domain and server space on yahoo geocities and I was hopeing to put a login section on my flash. Nothing too flashy like a instant chat or anything. More like what you see for a login system here on a forum. I created a php database, and though I don’t know much about that yet I am reading about it currently. Is that what I would need? Create a database to store the users names and passwords? Or do I also need more with it? Anyone mind pointing me in the right direction on what to read and what to get to figure this out. Thanks! :thumb2: