what if i dont have that ground on our plugs? almost all of of outlets in the house are 2 prongs..... how can i make these all 3 prong, safely? it appears that some plugs are the gfci plugs with the buttons and a couple others throughout the house are also a 3 rong outlet...... how can i verify these are indeed, safe.... and also.... can i make all the otehr 2 prongs into 3 prongs, or would new wiring need to be run or what?
A receptacle tester will show you if your wiring is correct, and what's wrong if it's bad.
You *might* be able to strap neutral to ground on a 3-prong outlet, but I wouldn't advise it -- I believe you'll need to run a new ground wire to each outlet (or gfci) if you want it done right.
