According to mike bruski (AJ9X)
(who i understand is working on a driver for phil's
code you can swap pins 2 and 3 at the 25 pin (or the 9
pin for that matter) and move the interrupt from IRQ 5 to IRQ 2
by cutting the trace going from B23 to a 74LS74 to edge connector
pin B4 (this is 4th  from connector end of board.

This test program sends and receives frames only,
Mike says he should have a driver soon (in about a week or so).
This may allow you to get your modem perking sooner while we wait for the
driver.
