Here's how you'll find Finding Archived Projects in ProjectFork 2.x. It's right in front of you, it's just on the "PROJECTS" page.

1. Go to "Projects" in the main menu.
2. In the Sub Menu for  "Projects" on the same line as "New, Copy, Archive, & Delete" look all the way to the right and you'll see a search box and a dropdown that says FILTER.
3. To view all ARCHIVED projects, selected ARCHIVED from the dropdown and click OK.