Well, that turned out be a very lame update - lots of stuff did not work correctly, but some more searching finally turned up the clue I needed to get BuildOS/Helmi_c to update my phone:
Here's the "REAL SCOOP": In BuildOS setup, I had to set "Rev/OS type" to the v.1.04 option (for my bootloader version), and then I got a good flashing setup as a result, although that was with a USB connection so not much help to this thread - sorry. See
http://forum.ppcgeeks.com/showthread...778#post386778 for more details if you are interested anyway.
I did get "something" with the min-SD card update, but it needs a good deal more refinement it seems to be really usable. Good luck.