show content to the person with the new site ONLY

I am finishing up a default template for the new bloggers plugin.

there is a few things that need explanation though so i want to add a couple videos on each new site.

These videos should only be shown to them IF they are logged in to their own site and no one else. also no way for someone else to register to see them.

I tried the membership plugin and it has way to many options and im not even sure if those settings would carry over with the new blog plugin.

i looked in to the password protect one but that doesnt really work.

any input on how to do what i need done?

thanks much!