8i is still supported. Not much longer, not for many people, but supported nonetheless. You can find support/desupport information on MetaLink.

Product Obsolescence / Desupport Information:
Oracle Corporation announces the end of Error Correction Support for Oracle Server - Client, Enterprise Edition, Parallel Server, Personal Edition, RAC & Standard Edition version(s) 8.1.6 (8i) on the following platform(s): ALL Platforms, effective 31-OCT-2001.
Oracle Corporation recommends customers upgrade/migrate to the following as soon as possible to maintain the highest level of support: Oracle Server - Client, Enterprise Edition, Personal Edition & Standard Edition/Workgroup Server 8.1.7 (8i) on any Oracle certified platform.

EAS will be provided until 31-OCT-2004, if the customer has a current support contract in place.