I may have misunderstood the original question, but here are a couple of useful tips if you're using Windows XP...
If displaying a folder full of images, XP generally defaults to the filmstrip view, displaying thumbnails in a strip below and a large view of an individual photo above...
Quick Rotation:
If in filmstrip
mode, you can highlight the images that you want to rotate (using Ctrl-Left Click) and then right click on one of them, select Rotate Clockwise (or Counter Clockwise) and all the images will be rotated in one fell swoop.
Quick Resizing:
Several very useful extensions to Windows XP (called Powertoys) are available FREE
here. If you download and install the Image Resizer Powertoy, you will be able to resize single or multiple images by right clicking from Explorer... It offers a few preset sizes and also custom size. It makes copies of the original file (unless you tell it not to... ) This little utility is very handy for resizing a number of photos for the web / email... Be careful tho as it doesn't automatically handle portrait sizes... you need to use the custom option to get the result you want...
HTH