I found that I had to make two changes to the script.  First, silly as it sounds, I have some shares with more than two spaces.  So I had to change the awk command "sub" to gsub.  Also, NT/XP insists on sharing some default shares with a "$" in them.  Unless the $ is escaped, autofs doesn't like the output of the script.  Here are my changes:

$SMBCLIENT $smbclientopts -gL $key 2>/dev/null \
   | awk -v key="$key" -v opts="$mountopts" -F'|' -- '
        BEGIN   { ORS=""; first=1 }
        /Disk/  { if (first) { print opts; first=0 };
                  gsub(/ /, "\\ ", $2);
                  sub(/\$/, "\\$", $2);
                  print " \\\n\t /" $2, "://" key "/" $2 }
        END     { if (!first) print "\n"; else exit 1 }
        '

Thank you so much for the script!  I wouldn't have figured this out without the example

Davek