need knowlegde of photoshop

Hi all!

Is there someone of you, now online, and can help me to fix a problem with photoshop.

The problem is that I want to add 2 pictures and then mix them togheter. I'm going to say the following steps I do.

1. -> Open Adobe Photoshop CS 2
2. -> File : New
By New : I fill in the following things:
Name: S&S
Preset: Clipboard
Width: 6 cm
Height: 4 cm
Resolution: 300 pixels/inch
Color Mode: RGB Color 8 BIT

3. -> File : Open : Click on the picture
Now happens the mistake.
When I open this file, I get the sizes of this picture, and not of the 6&4 cm's.
When I open another file, I get only that picture, and that sizes.
Normally, I should get another file of Photoshop, where I can paste the pictures from that, to the original page with the sizes of 6&4 cm.

Where is the fault? Please help me. I want to make something before I go tomorrow to Greece!

Thanks in advance, and I hope you understand what I mean!

EDIT!
I don't need some retard comments! I need someone who DO can help me. Go to another forum/journal for retard comments, thanks

EDIT!!!
I allready have found the solution thanks to swas 100* thanks :)