**Exhibit
      No. 31.2**


Form
      10-QSB/A


IsoRay,
      Inc.


(formerly
      Century Park Pictures Corporation)


File
      No.
      0-14247


**Certification
      Pursuant to Section 302**


**of
      the Sarbanes-Oxley Act of 2002 -**


**Chief
      Financial Officer**


I,
      Michael Dunlop, certify that:





1.
            
            I
                have reviewed this report on Form 10-QSB/A for the quarter ended
                March 31,
                2005 of IsoRay, Inc. (formerly Century Park Pictures
                Corporation);





2.
            
            Based
                on my knowledge, this report 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 with respect to the period covered by this
                report;





3.
            
            Based
                on my knowledge, the financial statements, and other financial information
                included in this report, fairly present in all material respects
                the
                financial condition, results of operations and cash flows of the
                registrant as of, and for, the periods presented in this
                report;




4.
            The
                small business issuer's other certifying officer(s) and I are responsible
                for establishing and maintaining disclosure controls and procedures
                (as
                defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the small
                business issuer and have:




(a)  Designed
      such disclosure controls and procedures, or caused such disclosure controls
      and
      procedures to be designed under our supervision, to ensure that material
      information relating to the small business issuer, including its consolidated
      subsidiaries, is made known to us by others within those entities, particularly
      during the period in which this report is being prepared;




(b)  Omitted;




(c)  Evaluated
      the effectiveness of the small business issuer's disclosure controls and
      procedures and presented in this report our conclusions about the effectiveness
      of the disclosure controls and procedures, as of the end of the period covered
      by this report based on such evaluation; and




(d)  Disclosed
      in this report any change in the small business issuer's internal control over
      financial reporting that occurred during the small business issuer's most recent
      fiscal quarter (the small business issuer's fourth fiscal quarter in the case
      of
      an annual report) that has materially affected, or is reasonably likely to
      materially affect, the small business issuer's internal control over financial
      reporting; and





5.
            
            The
                registrant's other certifying officer(s) and I have disclosed, based
                on
                our most recent evaluation of internal control over financial reporting,
                to the registrant's auditors and the audit committee of registrant's
                board
                of directors (or persons performing the equivalent
                functions):





a)  all
      significant deficiencies and material weaknesses in the design or operation
      of
      internal control over financial reporting which are reasonably likely to
      adversely affect the registrant's ability to record, process, summarize and
      report financial information; and




b)  any
      fraud, whether or not material, that involves management or other employees
      who
      have a significant role in the registrant's internal control over financial
      reporting.




Date:
              May
              12, 2006
            By:
            /s/
              Michael DunlopMichael
                Dunlop
              Chief
                Financial Officer







**
      The
      introductory portion of paragraph 4 of this certification that refers to the
      certifying officers' responsibility for establishing and maintaining internal
      control over financial reporting for the company, as well as paragraph 4(b),
      have been omitted in accordance with Release No. 33-8545 (March 2, 2002) because
      the compliance period has been extended for small business issuers until the
      first fiscal year ending on or after July 15, 2007.