Need to access old SBP v1.x files

I’m trying to access drawings that I did years ago and I’m receiving the following error:
“This project was created using version 1.7 or earlier of Storyboard Pro and cannot be opened.”

That’s a pretty casual way of saying that I’ll NEVER be able to access a lot of hard work that I did, even if it has been a while. Is there ANY way that I at least access the artwork? Is there a download of version 1.7 that I can install, at least temporarily?