Hudson. Add dependency for custom plugin

Hi. We've developed custom assertion and custom test step. Everything works fine locally, but when it's time to use it with Hudson - problems begin.
We've modified pom to include local maven repository, as well as added dependency as per http://www.soapui.org/Test-Automation/m ... ll-example. However it still doesn't work with errors like:
ERROR [TestAssertionRegistry] Missing assertion for type [MyAssertionID]
ERROR [WsdlTestCase] Failed to create test step for [Average Response]

Our plugin is soap-ahr-plugin

Our pom file:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.ist.qa</groupId>
  <artifactId>hnfwk-services-test</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <name>hnfwk-services-test</name>
  <url>http://maven.apache.org</url>
  
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.8.1</version>
      <scope>test</scope>
    </dependency>   
    <dependency>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-surefire-report-plugin</artifactId>
       <version>2.16</version>
       <type>maven-plugin</type>
    </dependency>  
 </dependencies>
 
  <!--The repository for where Maven can find the soapUI Plugin-->
 <pluginRepositories>
  <pluginRepository>
        <id>smartbear-sweden-plugin-repository</id>
        <url>http://www.soapui.org/repository/maven2/</url>
    </pluginRepository>
    <pluginRepository>
        <id>Atena-Nexus</id>
        <name>Releases on Atena</name>
        <url>http://atena:8081/nexus/content/repositories/releases/</url>
    </pluginRepository>
 </pluginRepositories>
 
 <build>
  <plugins>
   <plugin>
        <groupId>com.smartbear.soapui</groupId>
        
        <artifactId>soapui-pro-maven-plugin</artifactId>
        <version>5.1.2</version>
          <dependencies>
       <dependency>
        <groupId>com.oracle</groupId>
        <artifactId>ojdbc6</artifactId>
        <version>11.2.0.3</version>
       </dependency>
              <dependency>
                <groupId>soap.ahr.plugins</groupId>
                <artifactId>soap-ahr-plugin</artifactId>
                <version>0.6-plugin</version>
              </dependency>      
       <dependency>
        <groupId>org.reflections</groupId>
        <artifactId>reflections</artifactId>
        <version>0.9.9-RC1</version>
       </dependency>
       <dependency>
        <groupId>org.apache.poi</groupId>
        <artifactId>poi-ooxml</artifactId>
        <version>3.10-FINAL</version>
        <exclusions>
         <exclusion>
          <groupId>org.apache.xmlbeans</groupId>
          <artifactId>xmlbeans</artifactId>
         </exclusion>
        </exclusions> 
       </dependency>
      </dependencies>
     <executions>

     <execution>
        <phase>test</phase>
          <id>hnfwk.business.service.tests.school</id>
          <configuration>
           <testFailIgnore>true</testFailIgnore>
           
             <projectFile>business/hnfwk.business.service.tests.school.xml</projectFile>
             <outputFolder>${project.build.directory}/surefire-reports</outputFolder>
             <junitReport>true</junitReport>
              <exportAll>false</exportAll>
              <printReport>true</printReport>
              
              <soapuiProperties>
           <property>
             <name>soapui.logroot</name>
             <value>${project.build.directory}/soapui-logs/</value>
           </property>
          </soapuiProperties>
          </configuration>
          <goals>
             <goal>test</goal>
          </goals>
         </execution>
    </executions>
    </plugin>
   
   </plugins>
  </build> 
 
 <reporting>
  <plugins>
      <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-surefire-report-plugin</artifactId>
       <version>2.16</version>
        <configuration> 
          <aggregate>false</aggregate>
         <useFile>true</useFile>
     <!--also set this to link to generated source reports-->
         <linkXRef>false</linkXRef>
       </configuration>
     </plugin>
     </plugins>
   </reporting>
</project>

We rechecked everything twice.. Could you shed some light on our problem please?