I see 1.5 was pulled from the official site and 1.4 put in it's stead, though still packed with the 1.5 soft using a non-english installer.
Not sure why they scrapped the 1.3 installer/software (2.1.1 app), as it's the only one that actually worked to customize the logos and whatnot (and still does in 1.4/1.5 firmware) as well as including a Mac .dmg. If anyone wants 1.3 for the installers I've kept a copy and can
throw it on mega or something, though I think their support would probably link it too.