If you look on google street view, the image is from August 2012 and the mock tudor shop has writing in the window to say he is closing down and all donations are grateful(ly accepted). He might have been forced out. Something similar happened with the guy running the shop which is now the fish spa / cooking without water or oil / christian clothing shop. He was threatening hunger strike because British Gas took him to court for not paying his bill and led to his bankruptcy. He had a coffin in the door and everything.
I presume the camera shop mentioned is the place next door to the mock tudor, Ivor Howell.
The place next to the Salvation Army was, until recently, an office for the probation service, as far as I am aware.
I think that the Castle Delicatessen and Cafe Castelo are owned by the same people. I often wish I were Portugese as they seem to have quite an amount of fun in there. I had threatened to go down to Cruz 5 a day for the WC Qualifiers when Northern Ireland were playing Portugal but I never did it.