Installing

>>>  i found a copy of PSE 8

Found? I assume you've got a legally purchased copy with a 24 digit serial number. If not, you can only run the 30 day free trial before the software will stop working.

You could also try downloading the installer files from Prodesigntools. I just tried and they downloaded fine.

https://prodesigntools.com/direct-download-links-for-lightroom-3-and-photoshop-elements-8.html

You must follow the Very Important Instructions on that page first BEFORE you click the download links. otherwise you'll get an "Access Denied" error.

For Windows, you download both File 1 (.exe file) and File 2 (.7z file) to your local hard drive then double click the .exe file and follow the prompts.

There are no download links for this old version. However, since you have the disk, copy the disk to a thumb drive on another computer with CD drive, and then install via USB on your new machine.