I've posted this B-4 It is easy You can also go to windows site and download power toys it has an image resizer. All you do is install it and when you want to resize a pic just rt. click on it and the menu comes up left click on resize image and it will show you like 4 different sizes 2 choose from,works great 
Trust me
I did this the other day, by far the best option for resizing photos quickly. Now I dont have to load Photoshop all the time now. To make it easy for you guys you can click [
http://download.microsoft.com/download/whistler/Install/2/WXP/EN-US/ImageResizerPowertoySetup.exe ], Download and install...
