Translation of seitdem

I left the smaller regions out. Do you think they are important? There are some terms that are specifically used in Ecuador. Let's leave it as it is now. Time will show us within a few days if we need them all or not.
I have not installed ICQ, unfortunately, but I know many people who use other means of communication, perhaps I can down load it! Currently I am unemployed, I have worked as a waitress.
My grandchildren live in Switzerland, in Zurich, in the state of Zurich. In August I'm going to go back to Switzerland and I was hoping that I could learn to speak a little German by then.