I noticed your name in the new 6.1 ifup-aliases script.  I
had problems bring up virtual interfaces and with a little
bugging noticed that the following line seemed to be
missing.

	DEVICE="`echo $FILE | sed -e 's/ifcfg\-//'`"

I placed this line in the function new_interface().  Just
below the assignment line that starts with IPGLOP and above
line that starts wtih DEVNUM.  Around line 133 in the file.

I am not sure if this is where you intended the assignment
to be made, but it seems to work correctly.

I added the line because at line 156 with the compare of

      if [ -z "$DEVICE" -o -z "$IPADDR" ]; then
      	echo "error in $FILE: didn't specify device or
ipaddr" >&2 ; exit 0
      fi

$DEVICE is empty and causes script to fail.