Oracle 10G installation on Solaris 9

Hi Guys,
I need to install Oracle 10g on solaris 9, the server is not in cluster.
The server is already running applications like OVO and Weblogic.
Can you guys please tell me the steps to do this and what paramaters ( Kernal and otherwise) which need to be modified?
There will be about 100 people using this instance of oracle.

Please help!

BTW the server is E6500

take a look at the oracle installation manual. It contains a list of kernel parameters which are required to be tuned before starting the installation.