I just changed a line in the download program to point it at a different serial port (ttys1 in my case, but I assume you could do the same for the com port in the win32 bit.. =)

Jazz
(List 112, S/N 00030, 4 gig blue)
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Jazz (List 112, Mk2 42 gig #40. Mk1 4 gig #30. Mk3 1.6 16v)