I might need a little more info from you to help, i'm not sure I understand what your doing completely, but I'll try. While on your phone, if you looking at a map you created from your computer, you should be able to see all the points that you made. You should be able to click on one of the points on the map. To make things easy to navigate to, I turn on "bubble buttons". It really helps to navigate to, or call anything you click on. To turn on bubble buttons go into maps, menu, more, labs, scroll down and select bubble buttons. Now your going to have to close out of maps and open them up again to activate the bubble buttons. Now when you go into "my maps" on your phone, you should be able to click on any of the points you created, then click on the right side of the popup where the blue arrow is and you will navigate to that point. If you don't like bubble buttons, you have to click on the point you want to navigate to, click on the popup, click on the second button from the left (looks like a right turn sign), then select navigate.
I hope this is what you were talking about.