EXHIBIT 10.20
                                                                   -------------



                               [GRAPHIC  OMITTED]



ESSTEC  INC.
9500  E.  ARTESIA  BLVD.,  SUITE  203
BELLFLOWER,  CA  90706.

March  15th  2002

RE:  Letter  of  Agreement  re  Enterflow



To  whom  it  may  concern,

I  am  writing  to  confirm  to you that Esstec and myself will work together to
develop Enterflow based on Esstec's Essflow platform. The resulting product will
then  be  distributed  and  sold  on  through  my  company,  PublicMedia  Works.

I  look  forward  to  working  with the Esstec team to build what will become an
invaluable tool and the standard for film and television industry professionals.



Sincerely,

/s/ Corbin  Bernsen.

Corbin  Bernsen.
CEO/President.






  14759 oxnard st. van nuys. ca 91411,usa. tel: 818 904 9029. fax: 818 9049341.
                             www.publicfilmworks.com