Hi!
After creating the Free Image Plane select it and then in Attribute Editor:
imagePlaneShape -> Image Name
Hi!
Main menu:
Create -> Free Image Plane
Please read the Maya Online Help / Documentation for more details, these are basic things that are very well described and can be found by searching within a few seconds.
Hi!
You can't put an image into Maya you only can load an image into a Maya scene (it will not be stored in the Maya file, only the location/link will be saved).
1. Copy/create/save an image onto harddisk.
2. Load image into Maya from this location
There is nothing more to do.
honestly i just go view>image plane> import image...then select your image.