Mac OS now only support 64 bit Applications, Windows may go the same way. Photoshop Elements cost is around the $100 has most of what was in CS3 and some newer features and a newer ACR, Elements 2020 has support and is not subscription software.
Your cost was then all of $100 dollars a year.
CS3 extended cost $1000 and was available for download for more than 10 years. Adobe has official stopped all CS3 support. Adobe has removed that web application from their web site. That Web Application would then give them access to the download and provides them with a new serial number they could use to install the download of CS3 that does not have to activated to work. Old customers could provide their Old CS3 serial number to an Adobe web application. If you did not download the CS3 Installer that does not need to be Activated that Adobe made available to their old customers around the time Adobe was retiring their CS3 activation servers you are out of luck.
