I'm attempting to setup ZCM 11.2 Third Party Imaging

I've uploaded the files for the various formats successfully

I can PXE boot the device and get my little BartPE imaging menu thingy

The docs don't mention any of the following:

1) Are there limits to the UNC path to the image file? It seems that if you have a directory with spaces in it, it doesn't work:
ie: \\server\volume\Images\March 2011 Images\Image for something.gho

2) What if you have your images split into chunks? Like:
something.gho (2.0 GB)