SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K


                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


         Date of Report (Date of Earliest Event Reported)   June 8, 2005
                                                          -----------------


        INTERSTAR SECURITISATION MANAGEMENT PTY LIMITED (as trust manager
                  of Interstar Millennium Series 2005-1G Trust)
 -------------------------------------------------------------------------------
             (Exact Name of Registrant as Specified in its Charter)



                            Commonwealth of Australia
                 ----------------------------------------------
                 (State or Other Jurisdiction of Incorporation)



           333-112782                                   Not Applicable
    ------------------------                ------------------------------------
    (Commission File Number)                (I.R.S. Employer Identification No.)



Level 10, 101 Collins Street, Melbourne,Victoria,3000,Australia   Not Applicable
- --------------------------------------------------------------------------------
(Address of Principal Executive Offices)                            (Zip Code)


                              (0011) 613 8616 1600
              ----------------------------------------------------
              (Registrant's Telephone Number, Including Area Code)


                                 Not Applicable
          -------------------------------------------------------------
          (Former Name or Former Address, if Changed Since Last Report)



Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))





ITEM 8.01  OTHER EVENTS.

     On May 4, 2005  Interstar  Securitisation  Management  Pty Limited,  in its
capacity as Trust  Manager  (the "Trust  Manager")  of the  Interstar  Millenium
Series 2005-1G Trust (the "Trust") , publicly issued US$1,000,000,000 of Class A
Mortgage Backed Floating Rate Notes due December 2036 (the "Notes")  pursuant to
a registration  statement (No. 333-123901) declared effective on April 26, 2005.
Interstar Securitisation Management Pty Limited was the manager for the issuance
of the Notes.  Capitalized  terms used in this Form 8-K and not defined have the
same meanings given to them in the prospectus related to the Notes.

     On June 8,  2005,  the  Quarterly  Payment  Date,  the Trust made a regular
quarterly  distribution  of  principal  and interest to the holders of the Notes
issued by the Trust.



ITEM 9.01.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL STATEMENTS AND EXHIBITS.

(a)      Financial Statements

         Not applicable.

(b)      Pro Forma Financial Information.

         Not applicable.

(c)      Exhibits.





                  ITEM 601(A) OF
                  REGULATION S-K
EXHIBIT NO.       EXHIBIT NO.                     DESCRIPTION
- ----------        --------------                  -----------

    1                  99           Quarterly Noteholders Report Related to the
                                    June 8, 2005 Distribution




                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf,  as Trust
Manager for the Interstar  Millennium  Series 2005-1G Trust, by the undersigned,
thereunto duly authorized.


                             Interstar Securitisation Management Pty Limited,
                             (in its capacity as trust manager for the Interstar
                             Millennium Series 2005-1G Trust)
                             ---------------------------------------------------
                             (Registrant)



Dated: June 21, 2005

                             By:    /S/ ANDREW TWYFORD
                                ------------------------------------------------
                                Name:   Andrew Twyford
                                Title:  Director




                                INDEX OF EXHIBITS



                  ITEM 601(A) OF
EXHIBIT           REGULATION S-K
NUMBER            EXHIBIT NO.      DESCRIPTION                             PAGE
- -------           --------------   -----------                             ----

Exhibit 1         99               Quarterly Noteholders Report             1
                                   Related to the June 8, 2005
                                   Distribution