Hi earthcoder,
I'm NOT an expert, so take what I say with a grain of salt...
but I HAVE been playing a lot with my new (ebay-style) 5000d and have flashed the rom at least a dozen times now. (I had a lot of trouble deciding which I wanted ).
I believe I ran into your problem a couple of times and this is what I THINK may be the problem...
the SD card is not set up how the crow rom was expecting...either you don't have it formatted to ext/2, or it's got some stuff on it from other installs that is confusing it.
Do you have data you want to keep on that Rom? If not, I'd suggest formating the SD card from that little # prompt you were given. There's a real nice page of instructions here:
http://www.zaurususergroup.com/modules.php...20for%20newbies