WL 7 first versioin

where can i find the WL 7 initial program file. I purchased it as a download and cannot find it on my system anywhere. I had to rebuild my systems in my studio and that is the last missing piece of the puzzle

You can download it from the Steinberg forum, from the download area. Current version is 7.2.1.

But it is my understanding that it is just an updater and the original version of 7 has to be installed. I cannot find my original download of the initial version of 7

The updater is a full install, as usual for Wavelab.