Pigdog

An easy image resizer can be had free from MicroSoft.

Here's the link. Look for imageResizer.exe on the right column.

Microsoft PowerToys for Windows XP

or

Here is a direct link to the file.

http://download.microsoft.com/downlo...ertoySetup.exe

Just install it and then all you have to do is right click your pictures and choose a size or customize any size you want.