do you have the map file itself?
if not (and i could be wrong here as it's been a while since i had a kpro) you might have a problem as you'd need to re-upload the map with your new settings (i.e. the immob. being turned off)
i 'think' you can download the calibration from the ecu though as long as its unlocked.. not 100% sure though.
that said, what you'd need to do it is just the kmanager software:
http://www.hondata.com/kmanager.html
if you have a look at the pics there you can see the immob. checkbox. as said, you'd load the map, untick that, click uplod and voila job done.. unfortunately i couldn't tell you if you need the map or not on the laptop to do that.
(another side issue is your version of the kmanager needs to match the one that loaded the map onto the ecu or it won't read it. if you have the map file you can get round this by simply re-uploading it using the newer version but thought id mention it)
edit: is sending it to eurospec and asking them to do it not an option?