Install a Zencart 1.5.7 template on my Zencart 1.5.8a store

I have a small Zencart store version 1.5.8a running on PHP 8.2.6 and I need to install another Zencart Template that runs on version 1.5.7 but I don't know if it will run on the new 1.5.8a version or if any small tweeking would be necessary. Should be a quick and easy job.