Totally noob, wanted to crop as photoshop but can´t

[CaLy]

Hello, it´s been a while since i didnt post my question in here. A lot of problems happened since my 1st post and this one.

Anyway.
My question is:
is there a way to crop an image, like in photoshop, where you put the crop size you want, and it crops to that selection?

Code:

Source image:
http://i.imgur.com/NT7yMLA.jpg

Photoshop crop:
http://imgur.com/BwCLKOS

Gimp crop:
http://imgur.com/c5HYTDh

Why the crop size isnt the same in photoshop and in gimp?
And also, is it me or the quality is better in PS than gimp?

I am doing all wrong, right?
Thank you for reading this n00b question. And have a nice friday, and better weekend in advance!

Carlos Octavio

[ofnuts]

Hello. This forum is dead. People now answer questions on gimp-forum.net. See you there.