I’m not terrific with technology either, but I do know with “blogger”, you go to the top of the page and look at the upper left hand corner. See the ‘search’ feature? It’s that blank space with the magnifying glass symbol. Type a word in there and all the posts with that word in it will come up. 🙂
As to how to put in a zipper, well….there are many tutorials out there on the various types of zippers. The one I use a lot and like best is the ‘invisible’ zipper. You could also look up ‘centered’ zipper and ‘lapped’ zipper. There are all kinds of wonderful tutorials out there.
Putting in a zipper is not difficult, really. If you are near a store that offers zippers at cheap prices, you could pick up a few for practice and just install them in fabric. If you do not have a fabric store that carries them in bulk, you could look at second hand stores. It doesn’t matter what colour they are since this will be for practice. Here is a tutorial from Threads which produce the Threads Magazine. http://www.threadsmagazine.com/item/3728/sewing-in-a-zipper
Happy Sewing,
Carol