for the life of me I can't find where the heck Impulse Archived my Sins download.
Go to the Impulse orb in the top left, preferences > Folders and it should list the default archive folder. Unless you've cleaned it out, the archive should be there.
Also, Is Sins even able to run both 1.05 and 1.16 on the same computer?
With a little work. What version was your archive? If it's pre-1.05 you'll be fine, and here's what you do:
- Uninstall 1.16
- Install from archive
- Update to 1.05 from a standalone patch (fileplanet, etc)
- Copy the entire installation folder to another location
- Launch Impulse and update again to 1.16
You will be able to run 1.05 from the copied folder, and 1.16 will be your main installation tied to Impulse. Your settings may reset each time you switch versions, but otherwise it'll work.