Hmmm.... I've never had problems getting the image to show through an OLEDb connection (or through a native Oracle connection, but you're not connecting to Oracle.)
It's been several years since I've worked in Crystal XI, so I'm not sure whether this will work....
1. Put a "Picture" on your report.
2. Right-click and select "Format Graphic..."
3. Go to the Picture tab.
4. This is the part that I'm not sure is in XI - If you have an option for "Graphic Location", click on its formula button and enter the field that your image is stored in.
Even if you do have Graphic Location, I'm not sure this will work as I suspect that it needs a file path to the image instead of an image field.
-Dell