"Q. Can I load any E2 skins on any E2 image ?? " - No, depend on the receiver and its capabilities-
That is an old build ..... you need to reflash if you want to be sure that the current plgins and skins for that receiver will run.
When you build an image for a receiver you also create the feeds specific to that receiver's capabilities. ... so go to plugins, downloads, skins and you will see what is available.