Hey Eclipse000000000!
Your saves should sync up automatically if you boot up the new version, if not you could try searching in:
AppData\Roaming\RenPy\AHouseintheRift
There you should find your saves. If they don't sync to the game after booting up the new version, grab those saves and place them where the new version is by placing them in:
AHITR\game\saves
Hope this helps!