Locking and dragging layers

[rubdub10]

I have a image that displays the following....

This template has been shrunk down to
300 DPI for file size reduction, it is actually
1200 DPI. To size it back up to 1200 DPI,
Lock all of these layers and then open up
a new 1200DPI file (width 3.4,height 2.2)
and drag these locked layers to that file,
then hit Ctrl+T then hold Ctrl+S and resize
the template. The template will look and
print much clearer after it’s re-sized.


i was wondering how I would go about doing this...I have a mac and photoshop cs3

 

[Nomission]

First of all, shrinking means destroying image information. So restoring from a small image to a big one will not get that lost information back.
Second:
What exactly you don't know what to do?