Need help with 2006 navigation system

I hope you will bear with a confused old lady for a moment. We have owned our 2006 Prius since it was new, but we have never understood the navigation system so we didn’t bother with it. Now, we are going on a trip that will involve 5 destinations, and we would like to put in the motel addresses before we leave. We are trying to follow the instructions for destination input by address. In the Quick Reference Guide, the screen shown in Step 8 does not appear, and we cannot get any address except our own to stay in the memory. In a previous post, I saw a request for a basic steps to navigation guide. Did anyone come up with one?