I think it is version 6 however not sure if that applies to the 2s which could still be version 5, hopefully someone who uses woosh on the 2s can confirm. If you are going to try installing it make sure you have a back up of your line saved on pc or usb/ preferably both. You can download wooshbuild from the downloads section at top of forum, my son had same issue as you and it didnt matter how many versions of epg importer he tried it would not cooperate. Sorted it in the end with a clean installation of Open atv 6.1 image.