Combine 4 PSD files into 1

I have 4 PSD (Adobe Acrobat) files which need to be combined into one file. Basically, the image is split into 4 strips. The files are fairly large: ranging from 25meg to 10 meg each. I am attaching a zip file with what the image should look like after the combination is finished. ## Deliverables 1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Windows