Finally managed to change the oil seal, I had more trouble getting the prop shaft bolts off, than anything else, then the big flange bolt was a nightmare, eventualy I got anoyed with it, and started rocking the wrench backwards and forwards and it freed itself.
The bearing came out also, but looked in good nick, considering there was about 4 tea spoons of oil left in it. Popped the new seal in (I used the top of a spray can for this) tightened to where it was before, and then a "gnats cock" and so far no leaks.
Thanks agiain for all your helps peoples. I mean Chaser