Yeah, I am definitely putting the adapter in the right way. Just tried flipping it around, it just gave me the red X.
But that reminds me - as I said, I initially tried to do this with those generic ZIFF adapters from eBay. When I first tried to install them, I assumed they went the same way as the iFlash, with the SD card facing the back of the iPod. Obviously nothing happened when I tried that, but somebody told me that I could have damaged the ribbon cables by doing that. Is that true? Of course I didn't, like, cram anything into anything else in an unnatural way, everything seemed to fir together okay, I was just putting it in there backwards. Is there a chance this somehow, like, fried the ribbon cables? Any reason to hang my hope on that?
As far as the original hard drive goes, yeah, it seems to work okay. It began failing, which is why I'm trying to switch it out, but when I install the original drive and plug it in, iTunes goes as far as allowing me to sync music before the drive fails.