Nook Color, Book Cover, Calibre

Hello,

First let me apoligize if this has been posted, I did look but could not find anything then again I have a yammering kid, barking dog and trying to feed family in between LOL....

I have a Nook Color and the most recent version of Calibre.

I have downloaded a book and uploaded it to Calibre. I used updated metatags to include the book cover. When I try to upload it to my Nook Color, the image is not there.

Can someone please tell me how I can or what I need to do to get the cover loaded and listed in my Nook Library.

Thank you :)