Dennis,
Canon's Digital Photo Professional comes on the Canon Software disk and can help you preview, convert RAW to JPEG; resize, etc. before importing to Photoshop.
See here for a few tutorials on DPP.
http://www.usa.canon.com/content/dpp2/index.html
To save an attachment or upload an attachment I should say; the filesize needs to be less then 200kb for a JPG.
You can reduce the file size by either cropping/resizing the image, or reducing the Quality when you save to JPEG from Photoshop.