there is a general problem with using point&print on Windows 7. We have no solutions yet. The only way is to install local TCP/IP printers (see manual) on those Windows machines using the newest "ghostpdf.inf" and "ghostpdf.ppd" files from here:
http://svn.ghostscript.com/ghostscript/branches/icc_work/lib/ghostpdf.inf
http://svn.ghostscript.com/ghostscript/branches/icc_work/lib/ghostpdf.ppd
W.U.