Welcome Lann,
I completely understand the drive behind the request and I’m sorry since I can’t distribute out-of-date versions. It would be extremely arduous to give any support for since it requires the entire test rig of that era (the OpenEars version, any other plugins, possibly Xcode versions if OS versions were involved with the upgrade) and your account would require special handling every time there was an update. But I’ll be happy to assist you here to get up to the current version of OpenEars; just let me know any issues you’re encountering.