Timeline Photo on Facebook?

[iScream]

Ok like.. i spent 2 hours trying to get a 'cover' photo on the new facebook timeline but it says it has to be more than 399 pixels wide. So i keep finding abunch of pics more then 399 but they wont work! I use google images. Is this wrong? Is there another width?.. Is there a certain heigth?! Someone please help mee~! Like, the actual right size would work (: Or a picture of demonstration
Tried a 820 x 300 and it said this-
Try a Different Image
Please choose an image that's at least 399 pixels wide.
Your Cover
Your cover appears above your profile picture, and it's the first thing people see when they visit your timeline. Choose any image you want and change it as often as you like.
What about demensions? I dont understand that..

[abraXus]

you want them to be at least 820 wide and 300 tall (or taller, it will let you position it)

[Tana98]

I think you may have to upload a pic thats been taken with a camera and uploaded not one thats off the internet. Don't know tho bro

[carcrazy]

It has to fit the dimenions of the "cover" photo that has been mentioned in it.

[shed a light ♥]

I had the same problem, but what I did was go to http://www.picnik.com/ and after I uploaded my picture, I clicked resize under the basic edits section and I switched the first number to 450. Leave the "keep proportions" box checked. If your picture becomes a little blurry, you can use the sharpen technique on picnik to make it clearer. Then just save it and upload it to facebook!