Embarrassing to say the least, but after I bricked it on something else (tried to reinstall Installer as it was giving this ridiculous error about permissions, then that bricked it), I managed to recover it to 1.1.3. Then I DL'd Ziphone and saw the .bat files. Like some klutz I ran the wrong bat file, the one that processes iPhones, not iPod touches. Now iTunes can't even talk to it (I get an "unspecified error" ending in ...0022). Has anyone else ever had this happen to them or seen it?
Scary thing is, I hear tell there are in fact things you can screw up in the iPod/iPhone's firmware that make the unit good only as a paperweight without hope of recovery. I hope this isn't one of them.
Any advice greatly appreciated.