Open Image Compressor 2008 and go to the Image Tray. Pick the images you want with the image selector and click on them to add them to the Image Tray. If you want to add every photo in a certain folder, you just click on the Add All button. Once you have the photos you want, you can batch compress them. You can go to File>Batch Compress to start the process, or just click on the Batch Compress button in the toolbar. Then, pick the compression options you want, or edit the images. You can also pick the folder you want to save in. To start the compressing, click "Compress [x] Images now!" Wait for it to finish, and your files are now compressed.