The next thing we're planning after I finish some fan stands on the FanStands mod, is an update to rework the mod to remove arms and replace them with stands that look like the minions but do the same things the arms already do and fix everything that could be better in the mod. But after that everyone decided that we should do Part based updates with 6-8 stands that we think would be cool to add not including major protagonist and antagonist stands. That means D4C is probably a long time away... (These decisions may change later on)
First, you need TModLoader, which you can find here
Standalone - [1.3] tModLoader - A Modding API Once TModLoader is installed correctly, go to the "Mod Browser" part of the menu and type in JoJoStands. Click download on the one that doesn't say (By g@yLord) and there, you have JoJoStands installed.