Continuous Integration with Cruisecontrol.net and nant

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.NET3.5

.NET

I am trying to have a continuous integration and auto build process using cruisecontrol.net and nant(ver 0.91-alpha 2).Source code resides on a remote CVS repository.The problem is when I make some changes to the code and check it in cc.net detects the change and kicks off the build process(so far so good),but nant successfully builds no matter what changes I made in the code(even if I remove a bracket or a namespace and anything).I am unable to understand why the build is not failing.
And recently I found out that cc.net is not detecting the changes made to
the code by other developers.
My cc.net config file and the nant build file are included.
Please help.

CC.net config file

<cruisecontrol>
    <project name ="TEMT Integration">
    <workingDirectory>C:\Program Files\TEMTIntegration</workingDirectory>
    <artifactDirectory>C:\Program Files\TEMTIntegration\</artifactDirectory>
    <triggers>
      <intervalTrigger seconds="300" buildCondition="IfModificationExists"/>
      <scheduleTrigger time="02:00" buildCondition="ForceBuild">
      <weekDays />
      </scheduleTrigger>
    </triggers>
    <modificationDelaySeconds>10</modificationDelaySeconds>
    <sourcecontrol type="cvs">
      <executable>C:\Program Files\CVSNT\cvs.exe</executable>
      <cvsroot>:pserver;username=Usrnm;password=pwd;hostname=host:/cvsadmin/it_projects</cvsroot>
      <module>TEMT</module>
      <workingDirectory>C:\Program Files\TEMTIntegration</workingDirectory>
      <labelOnSuccess>True</labelOnSuccess>
    </sourcecontrol>
    <tasks>
      <nant>
        <executable>C:\Program Files\nant-0.91-alpha2\bin\nant.exe</executable>
        <baseDirectory>C:\Program Files\TEMTIntegration</baseDirectory>
        <buildFile>C:\Program Files\TEMTIntegration\default.build</buildFile>
        <buildTimeoutSeconds>300</buildTimeoutSeconds>
      </nant>
    </tasks>
    <publishers>
    <xmllogger logDir ="Logs" />
    </publishers>
  </project>
</cruisecontrol>

nant.build file

<?xml version="1.0"?>
<project name="TEMT Integration Test"
  default="run">
  <property name="TEMT.dir" value="C:\Program Files\TEMTIntegration" />
  <target name="clean" description="Deletes compiled binaries">
    <delete>
      <fileset>
        <include name ="${TEMT.dir}/**/bin/**/*" />
        <include name ="${TEMT.dir}/**/obj/**/*" />
        <exclude name ="${TEMT.dir}/**/Core/bin/Debug/ReportHelper.dll" />
        <exclude name ="${TEMT.dir}/**/Core/bin/Debug/ReportHelper.pdb" />
        <exclude name ="${TEMT.dir}/**/Core/obj/Debug/ReportHelper.dll" />
        <exclude name ="${TEMT.dir}/**/Core/obj/Debug/ReportHelper.pdb" />
      </fileset>
    </delete>
  </target>
  <target name="checkout">
    <cvs-checkout
       cvsroot=":pserver;username=usrnm;password=pwd;hostname=host:/cvsadmin/it_projects"
       module="TEMT"
      <!-- cvsfullpath="C:\Program Files\CVSNT\cvs.exe" -->
       destination="C:\Program Files\TEMTIntegration\">
    </cvs-checkout>
  </target>
  <target name="build" description="Builds TEMT">
     <solution configuration="release">
        <projects>include name = "C:\Program Files\TEMTIntegration\TEMTSource\TEMT\TEMT.sln"</projects>
     </solution>
  </target>
  <target
    name="run" depends="clean,checkout,build">
  </target>
</project>