Oracle Linux 6 and Oracle DB for ERP System

All,
I have a few questions about using Oracle Linux 6 and the Oracle Database for our ERP Server. We are using a System that run off of Appache httpd and Tomcat and connects to an Oracle Database. We currently are running as a hardware installed server, with Oracle Linux 5 and 10gR2. We are looking to migrate to a Virtual environment as we run VMWare for all our other Servers and services. I have started the install of a development/test system. I wanted to install Oracle Enterprise Linux 6 x86_64 along with either 10gR2 or 11gR2. I noticed that 10gR2 was not certified on OEL6 hence why the thought of moving to 11gR2. The one issue I have is the ERP system is not a x86_64 system is there any way of running 32 bit apps on a 64bit OEL install? I would need to compile a few small 32bit C code programs so would need 32bit libs to compile against. Any support would be greatly appreciated. I know that OEL has an i386 install but I also know that the x86_64 has more support for Oracle DB.
P.S.
Our ERP System is programmed via a small company that does not certify anything. They have taken the approach if it works it works (not happy with this but it is what it is). So the main issue is I need to get Appache Httpd, Tomcat running along with ability to compile a few small 32bit apps.
Edited by: Rever75 on May 7, 2012 1:45 PM

x86-64 is an extension of the x86 32-bit CISC instruction set. The 64-bit extension provides support for long mode to address larger virtual and physical address spaces.
You can generally run 32-bit applications on a x86_64 bit CPU and a x86_64 kernel, provided you have the appropriate i386 libraries installed. When you install Oracle 11gR2 11.2.0.1 for x86_64, appropriate i386 libraries are a prerequisite.
Since x86 on a x86_64 CPU is still hardware, there will be no performance penalty to run 32-bit application. Btw, you cannot run 64-bit applications using a i386 kernel. The only exception I know is Mac OS X.

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