I would like to change the preset email 640x480 to a larger size, but I can't find a way to edit this preset. When I try the batch processor I can change the size of the images, but then have to open my email client, start a new message, open the folder, and drag the files to the email. Is there an easy way to edit the preset and save it under a different file name like email (1024x768)?

Database > Import and Export > Batch Processor [Next]

To make editing easier I would start by selecting the "Email (640x480)JPEG" preset. [Next]
Set your Pixel size. [Next][Next][Next]
[Save current settings]
Once you enter the name and save the preset, it will be available for email.

Thanks much - it just wasn't obvious that I was editing the preset when I tried doing it. And yes to your second question - just a big powerful program that I'm trying to absorb.