Yes, there a number of very useful features in Elements that Adobe seems to leave out of CS2 for some unexplained reason. Elements is actually better at a bunch of useful things than CS2 is. That I don't understand.
Anyway, if you want to select several images in Bridge and make image sizes appropriate for email, you can do that. It's not as simple as in Elements, but not that hard either.
Just select the images you want to attach. Select Tools/Photoshop/Image Proccesor from the menus. This will open up Photoshop and bring up a dialog. You can then select a folder location, JPEG as the file type, Resize to Fit and enter a pixel height and width appropriate for email depending upon how big you want the images to be and Convert profile to sRGB and go. It will then makes JPEGs for you of the requested size. You, then finish the process by manually attaching them to an email in your email client.
--John