PHP webpage Oracle Database Connection

I am trying to get a php oracle connection working. I see hundreds of entries into all sorts of forums but have been unable to come up with the correct combination of software versions to make the connection properly. I am using the following software versions:

Windows Server 2003 service pack 2
IIS 6
PHP 5.2.6.6
Oracle Net8 Client 8.0.6.00
Oracle Database 7.3.4

From what I have read and tried. PHP5 will not work with Client 8.0.6 so I downloaded Oracles Instant Client which got me past the oci8 functions not showing up as a set of available functions.

Now the Oracle Instant Client will not connect to version 7.3.4 of the database because of the Service_Name, SID difference.

Has anyone come up with the correct combination of software versions to get this connection working.

Thanks