does anyone know how to do the picture in the blended into the background ? on photoshop 7 ? thank youss!

You can try these. They're the same on blending.
http://www.createblog.com/tutorials/download.php?id=207
http://www.createblog.com/tutorials/download.php?id=506

http://www.createblog.com/tutorials/download.php?id=30
Instead of making it horizontal, switch it and put the images on top of eachother. I'm sure it'll get the same outcome.

i`ve tried these method [thanks] but it does not fade in with the background

the standing is one picture cut out, the rocks and stuff is a digital background, and the girl in the back is from anoter picture blended into it , but HOW ?

Try lowering the opacity/fill maybe?

not quite the result yet.. im sure there is a way .. the picture studios do it all the time.

Maybe if you feather the picture

You could take the image of the scenery you would like to put the person in. Cut out the person you would like to be in the scenery and place it on top of the scene and take a feather brush and erase away the edges that you don't need. Then for the girl in the top left corner, just cut out the image and just place it on the picture and you can use the erase tool again and go to image> adjustments> variations and change the colors to your liking and then you can change the opacity of that picture and it will blend into the back more than likely..