Firstly, congratulations on a wonderful piece of software. The features are good, and it is obviously well maintained.
I do have one suggestion for a minor change.
The Make Image Bootable options work well BUT the drive letters are fixed. A: is used for floppy disk images and C: is used for hard disk images. For most normal usage this is fine.
However many DOS disk management utilities such as PartitionMagic and Drive Image will fail when running off a CD operating as drive C:. They try to access C: assuming that it is the first REAL hard drive, which it is not.
If we could change the drive letter that the emulation runs under this would get around this type of issue. Either that or force all emulations to run as drive A:.