Things are going a lot better actually. After spending a lot of time outside over the past few days he is getting used to going outside. I was really surprised last night when I took him outside and said 'go wees' and straight away he went on the grass and did a wee...then a bit later after eating I took him out when I suspected he needed to go again and said 'go poos' and again he went straight away and did one on the grass! I was so pleased and gave him a treat both times..there was no way I could get him to do that a few days ago! He was determined to go inside! So like you said I'm just being patient with him and persevering with him and it seems to be working...he still has a couple of accidents but he hasn't done a poo inside for a couple of days which is great!