Hellr, this is also not working on my vita 2000, I hope it gets fixed soon, this is such a cool port and idea !!
i wish to ask,
"extract the zip anywhere in ux0 and press △ and press install folder"
what did you mean by install the folder? did you mean to install it in vitashell? I extracted the folder on windows, moved it to ux0 and in vitashell, pressing △ doesn't have an "install folder" feature per say, so did i do something wrong?