today i tried to see and was curious to find the downloadable for older versions for Hyperion Essbase.
so here you goes.
In order to find Hyperion Essbase Pre-Version 9.x for downloading, please follow the steps below:
1) Log in to Oracle Software Delivery Cloud (edelivery.oracle.com)
2) Select Hyperion Performance Management and BI for Product Pack and Microsoft Windows (32-bit) for Platforms
3) Click GO
4) Click on Hyperion Performance Management and BI (Pre-Version 9.x) Media Pack for Microsoft Windows (32-bit)
5) Look for Hyperion Essbase