I don't understand how to do the screenshots. I know how to take one, and save it and all, but it says that it shouldnt be in widescreen. How do I fix that?

Hello and welcome to cB. I'm going to go ahead and move this to Graphics Help so that you'll have a better chance at having your question addressed. :)

Moved to Graphics Help

Wtc? What are you trying to submit this screenshot for?

You can always crop out the extra black space...

But really..I need to know what this is going to be used for to getcha a good answer.

Also, hello.

^ Maybe there submitting it for the layout submissions etc?
Just take a normal screenshot. Submit it. If it doesn't work. Crop it .