Youtube Importer embed code

Hello! I have a small problem with the size of the player from Youtube. Nowhere discovered where can I set the default size.

You might want to bring your problem directly to the attention of the plugin's developer.

Thanks, John :)

I'm also having some trouble getting this plugin to work - that having been said, it will be a dream come true once I know how to use it! I did leave a comment for the developer through the link that John Flatness left above, but I'll also ask here in case anyone has any idea how to fix this - anytime I try, I get this error message:

Error importing video. Metadata element missing for embedded video html

Anyone know what that means? Thanks!