Ury Link <uryl@...>
You are right, the letters are acronyms for:
1: Yud = Yagen. Ayin = Aleinu. Alef = Elohim. Go'd defend us.
2: Yud = Yivne. Ayin = Yirenu. Alef = Elohim. Go'd shall build our town.
3: Yud = Yehie. Ayin = Yimanu. Alef = Elohim. Go'd are with us.
And there are more explanations for this acronyms but I think that these are the best.