1. Install Oracle
2. Install Client - D2K
3. Create 8i Database
4. Configure listeners, client - tnsnames.ora
5. Configure host ip address in client.
6. If u want a web based app - use Oracle App. Server . I think Oracle Portal should also be helpful but not sure about this.
7. Design your application and build your tables/indexes on the database
8. start coding....!!
Hope that would suffice.

Cheers