Printer presets are stored in the InDesign Defaults file, part of the preferences set. You should open ID on the old system and then go tot he Define dialog where you can select them and choose Save, then on the new system you can load the set you just saved.
Makes total sense. If I can open ID from the old hard drive, I'll save the presets. I tend to print the same files often and using the files I've copied from the old hard drive it appears that the custom printing instructions saved with the ID file have carried over with the file, the printer presets only show "custom". I can open the print dialogue and choose save preset and give it a name and that keeps the old preset configuration. I will also do as I've seen other suggest which is to save the defined presets in a separate location so I can load them again if they get lost. Thanks for your help.
If I can open ID from the old hard drive, I'll save the presets.
If you can get to your old user folder you could also get the actual preference file and copy it into your new system, in that case you wouldn't need to launch ID on the old system. This is the path to the file:
~use/Library/Preferences/Adobe InDesign/Version 11.0/en_US/InDesign Defaults