Apache2+PHP5, Connecting to multiple Oracle servers

Hi, I use Apache2+PHP5 on Linux to connect to an Oci8 compliant remote Oracle server. I have compiled PHP against the Oracle client release 10.1.0. This works fine so far. I need to connect to an older remote Oracle server, too. This Oracle version is 8.0.5 which seems to be too old to work with the same configuration. I guess I have two options: - To install an older Oracle client release for Linux and configure PHP with Oci7 (is 8.0.5 oci7 compliant?) and Oci8. - To use odbc with the older Oracle. I thought it might be a good idea to use odbc so I configured PHP with iodbc driver manager support. Unfortunately, I can't find an Oracle odbc driver for Linux! There seem to be commercial drivers but are they worth buying? If I decided to install a native Oracle client for the older database, which client version should I choose? Thank you for your ideas on this matter! Mikael Jokela