I AM USING THAT VERY CONFIGURATION.
No problems. YOu will get one thing, after finishing the image, and rebooting, you will get a bunch of "Inserting String" errors on chkdsk (auto run from win2k).
Don't worry. Don't cry. The image will be fine. Just let win2k run.
If you want to keep ghost, look at the 7.5 upgrade. But keep 5.1d around, you may not be able to get all of your images to update.
BE good!!
Riles