it's not easy, and without spending some money it's never going to be.

i had my L8 ecu converted by RP Labs so that I can connect it to any pc via a normal serial cable

R & B Motorsports (Mike Rainbird) will be selling this product in the UK soon. For some information, see the website http://rptune.eu.org/ or contact R & B Motorsport.

whereabouts are you? maybe you could come to the Berkshire group meeting and have a demonstration?