If you specifically need version 3.0, your best option is to look through software preservation archives. Internet Archive : Hosts a "Free Download" for ArcSoft PhotoImpression v3
ArcSoft PhotoImpression 3.0 is a legacy software program that is no longer officially supported or sold by ArcSoft. Because it is discontinued, you can typically only find it through software archives and community repositories. arcsoft photoimpression 30 download free link
ArcSoft PhotoImpression 3.0 is a legacy photo editing and management software designed for entry-level users If you specifically need version 3