i have just made contact last month with my dad after 33 years,he traced me a couple of years ago,at first i said fcuk off, like you have,but have mellowed since ive had my own kids.his story doesnt quite match what my mum told us and he doesnt seam to be the bastard she made him out to be and have decided lifes to short to hold grudges.im spending next christmas and new year at his house in australia where ill meet him for the first time since i was 3. id say speak to your dad thrush and see how it goes from there,what harm can it do?