EXHIBIT 31.1

                    SECTION 302 CERTIFICATION IN RELATION TO
                 INTERSTAR SECURITISATION MANAGEMENT PTY LIMITED


I, Andrew Twyford, certify that:

1.   I have reviewed  this annual  report on Form 10-K,  and all reports on Form
     6-K  containing  distribution  or  servicing  reports  filed in  respect of
     periods  included in the year covered by this annual  report,  of Interstar
     Millennium Series 2003-5G Trust;

2.   Based on my knowledge,  the information in these reports, taken as a whole,
     does not contain any untrue statement of a material fact or omit to state a
     material  fact  necessary  to make  the  statements  made,  in light of the
     circumstances  under which such  statements were made, not misleading as of
     the last day of the period covered by this annual report;

3.   Based on my knowledge,  the distribution or servicing  information required
     to be  provided  to the  trustee  by the  servicer  under the  pooling  and
     servicing,  or  similar,  agreements,  for  inclusion  in these  reports is
     included in these reports;

4.   I am  responsible  for reviewing the  activities  performed by the servicer
     under the pooling and servicing,  or similar,  agreements and based upon my
     knowledge and the annual  compliance  review required under that agreement,
     and except as  disclosed in the reports,  the  servicer has  fulfilled  its
     obligations under that agreement; and

5.   The  reports  disclose  all  significant   deficiencies   relating  to  the
     servicer's  compliance with the minimum servicing  standards based upon the
     report provided by an independent  public  accountant,  after  conducting a
     review in  compliance  with the  Uniform  Single  Attestation  Program  for
     Mortgage  Bankers or similar  procedure,  as set forth in the  pooling  and
     servicing, or similar, agreements, that is included in these reports.



/s/ Andrew Twyford
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Name:    Andrew Twyford
Title:   Chief Financial Officer, Interstar Securitisation Management Limited
Date:    October 13, 2004