another point the cones i took out before were very worn so could they have damaged the tower in the subframe ?
At a guess I'd say that it would probably be very hard to damage the subframe tower. Maybe excessive and incorrect use of the compression tool could do some damage, but I think you'd notice.
When I first changed my front suspension I recall having to push the new cone up into the tower with one hand while trying to get the compression tool thread into place with the other. The fiddly bit was getting the back-end of the cone sat right in the tower as I was worried that I'd bend the metal seat.
Re-reading the thread above, you had new cones and dampers fitted a month ago but you had the same problem before, so I'd look at the knuckle joints first as Boycie suggested earlier and see how bad the drivers side is compared to the passenger's.
DTXDave