Hi there,
The reason it's not showing up in "Browse all applications" is because we do not have a crosstie (which is basically an installation recipe) on file for it. Our ratings for this application are very old, and they were likely tested against a much older version of Pivot Stick Figure Animator.
There's nothing different you can be doing, and our trial is fully functional, so purchasing CrossOver wouldn't make any difference. If you have any more description of what's going wrong, it's possible someone here might have an idea of things to try. Additionally, we have some tips on getting unlisted applications to work, and it's possible something here will do the trick:
https://www.codeweavers.com/support/wiki/mac/mactutorial/unsupported_deps
Best,
Meredith