How to implement Lucene

[Álvaro Vargas Quezada]

Hello,
I want to implement a central index, and I heard about Lucene, so I would like 
to ask your help to install it and configure it. My OS is Windows 7/XP/Server 
2008. If I could index just one database and make a search I would be happy.
I would be grateful if you can send me any info about this.
Thank you very much! And greetings from Chile! :D