Click on the link and watch my video on how to resize a picture with Paint and then post it to the board.
http://s287.photobucket.com/user/jwgreen407/media/ScreenCapture_1-28-2014101323PM.mp4.html
Click on this link to watch my video on how to resize multiple pictures.
http://s287.photobucket.com/user/jwgreen407/media/ResizeMultipleImages.mp4.html
Here is a link to the software Fast Image Resizer
http://adionsoft.net/fastimageresize/
Hope this helps!!