I removed the site maintenance message, and it seems to be running okay.

"We're currrently updating our system and will be back up shortly. Sorry for the inconvenience."

(note the triple r - that's a direct copy from the error message)

Now what?

Not really a plug-in, but embed.ly offers a script you can put in your template, and video links become videos using oembed

Sample in gpEasy http://billcreswell.com/index.php/Video

Embed.ly script http://api.embed.ly/tools

I think that the Space in the name gave me a few hangups. Can you do Simple_Blog?