just had a quick go Charlotte, not perfect! i use paint shop pro which has a perspective correction tool. im not sure how you do it in ps but in psp you have a square which you stretch to match your verticals, double click it and it straightens it for you! the only downside to this is the picture ends up getting automatically cropped by the process so you can lose important bits of your pic.(i couldnt help playing with it a bit too lol)