Change the "Tool Change" section in your POST.
Mine looks like this (I have an 1100 with the Tormach ATC). Not pretty, but it works more or less (you'll need to edit the startup code to match as well):
Code:
3. Tool change
" "
comment_start,"NEXT CUT - NEXT TOOL"comment_end
system_comment
feature_name_comment
n,rapid_move,"G53 Z-2",coolant_off, spindle_off
n_forced,t,"M06"," G43",h
n,s,spindle_on, coolant_on
n,absolute_coord,work_coord
n,rapid_move,force_x,xr,yr,rotary_xy_angle
n,rapid_move," ",length_offset
output_rotary_angle
" "
You can leave the M01's in and switch them off if you want.