UTLDTREE dependency script

Hey, can anyone tell me the limitations involved with using the UTLDTREE. I actually have two issues related to this utility.

I compiled the script and then ran the following:
(1.)
EXECUTE deptree_fill('TABLE','FIDATA','TRADE_T');


SELECT * FROM IDEPTREE;

DEPENDENCIES
----------------------
TABLE FIDATA.TRADE_T




--- What does "" signify?????? ---

(2.)
EXECUTE deptree_fill('VIEW','FIDATA','MARKETDATA_V');

SELECT * FROM IDEPTREE;

DEPENDENCIES
-------------------------------------------------------
VIEW FIDATA.MARKETDATA_V


--- I only get only row for EVERY view i run it against. It seems that none of the views are dependant when ALL views are dependant on other objects, so it cant be correct.


Can anyone help? Thanks in advance.