Hi CaptainPossible - Hmm used to be able to get to the link via the downloads page here: Topaz Labs | Downloads and choosing ‘other version’. That no longer takes me directly to a download, but does go to the ‘releases’ forum. The first post in each version announcement has a link to a download for that version.
The most recent working version for me was 3.0.4.
Here’s the announcement, which has a download link: Topaz Photo AI v3.0.4 …and here is the download link from the announcement:
https://downloads.topazlabs.com/deploy/TopazPhotoAI/3.0.4/TopazPhotoAI-3.0.4.msi
No, I was not able to get 3.1.x working on the VM. Bummer! I liked the way topaz was heading…but oh well.
re: Bricking install - No, the uninstall of 3.1.x and downgrade to 3.0.4 went smoothly. I uninstalled the ‘bad’ 3.1.x install, cleaned its entries out of the windows registry. There were no 3.1.x temp files that I could see. Then I installed the 3.0.4 msi. Worked great.
I’ve now got a 3.1.x ‘busted’ VM instance that I keep around, just in case Topaz accidentally fixes the issue.
Good Luck, CaptainPossible 
