Here is an idea:
1- Create a table with the width and height equal to the Main Image (the buttom one), and set the Main Image as the background of that table.
2- Place the User Image (the top one) inside a cell in that table. You can display a different image by assigning a variable to this image name inside your PHP file, so that depending on the image the user uploads, it displays THEIR image inside the table cell every time.
That will do it. All you would need is a simple PHP Upload script which you can download from
www.hotscripts.com.
