Use the RENDER command to obtain the image of the solid. Adjust the view angle, the background color, the lighting... When you got the desired image, render again but this time in the render dialog set the Destination to File. The image will be saved in a file. Do you need that image in AutoCAD? If so, reimport it using the Imagemanager. Or better continue your work i Corel or Photoshop or something.
If you reimport the image in AutoCAD be careffull: do not move/rename/delete the imagefile.
When you will upgrade to AutoCAD 2004 you will be able to skip the save and reimport steps.