cannot install skype, password box comes up , but does not proceed when I put in password, also chrome store apps will not add to chrome?

When you try to add apps to your device are you seeing an error? Are you able to add apps to another device using the same account? If so, you might want to try wiping the stateful partition.

To try clearing the stateful partiton you need to flip the dev switch, wait for the restart, and then switch it back. If that doesn't work, you may need to recover your device using image burner (chrome://imageburner) -- you can find out how to do this here: Recover your Chromebook - Chrome OS Help

Regarding Skype, this will not work on your device as Skype is not currently supported on Chromebooks.

-Melissa
Chrome OS Community Manager