HI. i have been trying too merge images together in photomerge. am doing something wrong as there not merging properly.
it probably something am not doing at the beginning. or am i trying too merge too many pictures?
If you mean the fact that the top and bottom edges are "jagged" I am afraid that is how photomerge works. You need to take this in to consideration when taking your original photos - you will always have to sacrifice some of the top and bottom.
You could try clone stamping to replace the missing areas - or using content aware fill (it will be considerably easier with the top of the image rather than the bottom).
A very quick edit using content aware fill gives this - it is clearly not perfect as there is some repetition but it has filled in the white areas (as I said before - more effectively at the top rather than the bottom).