Yeah, thankfully it didn't brick. I feel like I'm walking through a minefield with this thing.
Anyway, switched ports, had the file renamed to end in .tar, made sure Odin was opened as administrator in Windows 7, and thankfully it flashed fine.
Now I'm back at vanilla 2.1, can start fresh in terms of upgrading, was having some problems earlier. Is that GPS locking problem present in 2.3? Assuming I put ClockworkMod 3 on it and have the file system reset to EXT4, can I just flash to 2.3 ROMs right away?