Sotology

I tried to check the website for oringinal CD at badlight.is-a-geek.net but it seems to be down. Is there another website I can download to update the flash for AVIC-S1? I mess up with it by errasing flash and now I can't get it back to work even I tried with ActiveSync, SD card from CD I have from Pioneers (softwares without o/s I beleive)... I don't understand why company won't include o/s unlike computer/laptop that comes with o/s. Thanks...