Semantic Search Digital Library

Dear Drupal-ers

I am a student, I need help on this "semantic search digital libary" module. I want to create a site for implementation "semantic search digital library" base on Drupal. Drupal its a best CMS have a support with semantic web technology. First, how about the version of Drupal ? what's the best version D5 , D6 or D7 to implementation it ?

How to about the RDF, OWL and SPARQL.

Would you help step by step for this "semantic search digital libary".

Thank you very for your kind information.

regards