Exhibit
31.1
 Section
302 Certification
 
 I, Derek
P. Downs, certify that:
 
 1.           I
have reviewed this annual report on Form 10-KSB/A, as amended, 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:
September 30, 2008
 
 
 /s/    Derek
P. Downs
 Derek P.
Downs
 Chief
Executive Officer
 (Principal
Executive Officer
 and
interim Financial and Accounting Officer)