**Exhibit
      31.1**





**Section
      302 Certifications**





I,
      Derek
      P. Downs, certify that:





1.           I
      have reviewed this quarterly report on form 10-QSB/A of Cistera Networks,
      Inc.;





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 small business issuer
      as
      of, and for, the periods presented in this report;





4.           I
      am 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.           Designed
      such disclosure control over financial reporting, or caused such internal
      control over financial reporting got be designed under our supervision, to
      provide reasonable assurance regarding the reliability of financial reporting
      and the preparation of financial statements for external purposes in accordance
      with generally accepted accounting principles;





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 fourth
      fiscal quarter that has materially affected, or is reasonably likely to
      materially affect, the small business issuer’s internal control over financial
      reporting; and





5.           I
      have disclosed, based on my most recent evaluation of internal control over
      financial reporting, to the small business issuer’s auditors and the audit
      committee of the small issuer’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 small business issuer’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 small business issuer’s internal control over
      financial reporting





Date:
      November 19, 2007





/s/    Derek
      P. Downs


Derek
      P.
      Downs


President


(Principal
      Executive Officer)