Make sure you have set the boot order in you BIOS so that it will boot from floppy. The point is that you don't get any other error messages. Check if the CD-ROM is working correctly. It would be stupid to burn a bootable CD and find out that it doesn't work because of wrong drivers or a type mismatch. If you get error messages you will have to fix these first.
Image files can contain multiple partitions.
For more detailed command line parameters see Appendix A of the Ghost manual. Double check the line to make sure it contains no errors. After it's burnt to CD there's no way of editing it anymore. Save the file. Burning the Bootable Ghost Rescue CD I'll use Nero here to explain what to do because it's about the most used software, but it's very similar with other CD-R software.