I have created all of the settings in nlite just the way I want them for a number of versions of Windows (2ksrd, skadv, 2k3std, 2k3ent)

I call a set of custom scripts as part of the install. These scripts execute the same way from each version of the OS, so the only thing I need to change is the scripts (in the $OEM$ directories, and some of the $OEM$ files

1. if I change files in the $OEM$ directories, I do not need to re-run the whole nlite compilations, I should only need to recreate the ISO. Correct?
2. is there a command line I can use to create the ISO directly? I know that there are ISO creation tools such as CDIMAGE out there (I have a copy from WINPE). Is there anythign special that needs to be done with creating the ISO?
3. Can I take the cirestory structure NLITE creates and burn that directly to a CD? Do I need to do anything to make it bootable? Or will it boot by virtue of the file directory structure on it.

Thanks in advance for any help....

Correct.

Grab the 'boot.img' file from your nLite program folder and place it in a folder together with 'cdimage.exe'. Then copy/paste the following into a batch file named 'makeiso.cmd' and which you also store in the same folder, and you also need to ammend the paths accordingly:

Source path
Destination path
Volume label

Then you just double-click on 'makeiso.cmd' whenever you want to make a bootable ISO.