RSS + youtube + embed

Hi,
What I want : auto creation of content (article) when a youtube user adds a video, displayed on my front page with enbed video

What i have done :
for auto creation : "feeds" and "feeds youtube" and (i think) well configured -> RSS import works
for embed video : "oEmbed" "Simple oEmbed" and "googtube" and configured in "text format" like their documentation tells -> website can't load and creates an error on every page. I try module one by one, it didn't change anything.

Then my problem is the embed part. I have thumbail, link to the video but i want the website to automaticly create an embeded video.

Is there another way to do this ?
All my modules are up to date, new install from yesterday. Here is the list of my modules installated on "site/all" http://i.imgur.com/KVox5.png

PS : i want to do the same with vimeo too.

And i have another question quite different : Do you know why the rss from a youtube channel doesn't display all the last vids ?
In the 50 it shows (sorted by published date), some video are not diplayed .. even on google reader, not only in drupal.

(sorry for my bad English)