Hmm, you can't find an IP because you don't have a Dash at all. Assuming you have a mod chip, you could makea boot disc with Evolution-X or whatever on it and get into it that way.
Or, if you have a programmable mod-chip you might be able to load one of those BIOSes that have on-board ftp client. Then, connect to that and load all the required dash files.
Try not to format the C: drive again...