Apps 11i with oracle 10g as db installation on PC

[sandeep__27]

Hi,

I'm new to apps.. when i installed Apps 11.5.10.2 in my pc in got oracle 9i as a database and Forms,Reports 6i nd Discoverer 4i as default..
And now i want to install Oracle 10g as database for 11i.. so i wish someone of u guys will suggest a solution( pls be in detail) for this.. my pc contains Win 2003 server with sp2.

Thanks in advance.
Sandeep