Uhm the recipes folder only contains .txt files. That doesn't bother Minecraft if they are installed or not...
I'm the mod maker, I know stuff I create the best ;). The recipes folder is a part of recipe loader, which I made for the minimods. The loader searches through the recipe folder and loads all recipes contained there, to make all recipe mini mods compatible with each other. If you don't put the recipe folder into minecraft.jar, new recipes, like stonebrick recipes (episode 1), saddle recipe (part of rideable pigs - episode 2) and craftable ice (episode 5), will not work.
Updating to 1.3.1 is in progress, you can follow my twitter to see exact progress. Right now, there's an exclusive opportunity to get updated mods right after I finish them! On my website, I update the minimods instantly after I finish them, the topic will be updated later, so don't forget to check it, maybe the mods you want are already updated!
(Protip: I'm updating them in alphabetical order)
Hey guys, I would like to say that the site and webpage won't be updated today since Chylex is out of town. Instead if you would like to download the mods from the video on realm, here they are instead: