Take a look at the attached picture. I added multiple pictures and made them layers in Photoshop. I then with into the blend options and selected Darken for blend type. That was the best looking one I could find. I tried to what someone else suggested by setting transparency to 50 and leaving the type to normal. Cut out the overlayed part I don't want. That looked even worse. TIA
If you know how to use the Clone tool or if you have PS 7 you can use the Healing Brush. What I would do is get all your pictures aligned, flaten all layers and then use your clone or healing brush tool to smooth out the lines were the pictures meet. What that does is blends the lines of the pictures with each other. It smooths the lines out were you cant tell that their is multiple pics. You may need to practice with it.
I am not sure if setting the blend options will change anything, try and experiment. Also make sure you work on back up copies. Hope this helps!