The repository-zip target's comp-version, like this (use appropriate version string):
<target name="repository-zip" depends="jars"
description="Create the repository.jboss.com jboss/ejb3 component contents">
<!-- The binary component version -->
<property name="comp-version" value="1.0.0.CR9-jboss4.0.5" />
<!-- Pack the ejb3.deployer -->
<zip destfile="${build.lib}/ejb3-deployer.zip">
<zipfileset dir="${build.lib}">
<include name="ejb3.deployer/**" />
</zipfileset>
</zip>
<!-- Create a zip file with the component structure -->
<zip destfile="${build.lib}/jboss-ejb3-repo.zip">
<!-- The component-info.xml -->
<zipfileset dir="${build.etc}" prefix="${comp-version}">
<include name="component-info.xml" />
</zipfileset>
<!-- The bin/ejb3.deployer -->
<zipfileset dir="${build.lib}" fullpath="${comp-version}/bin/ejb3.deployer">
<include name="ejb3-deployer.zip" />
</zipfileset>
<!-- The lib client jars -->
<zipfileset dir="${build.lib}" prefix="${comp-version}/lib">
<include name="hibernate-client.jar" />
<include name="jboss-ejb3-client.jar" />
</zipfileset>
<!-- The resources deploy descriptors -->
<zipfileset dir="${build.lib}" prefix="${comp-version}/resources">
<include name="ejb3-clustered-sfsbcache-service.xml" />
<include name="ejb3-entity-cache-service.xml" />
<include name="ejb3-interceptors-aop.xml" />
</zipfileset>
</zip>
</target>

and ejb3\src\etc\component-info.xml (the version attribute):
<project name="jboss/ejb3-component-info">

<component id="jboss/ejb3"
licenseType="lgpl"
version="1.0.0.CR9-jboss4.0.5"
description="The EJB3 deployer for integration with jboss-4.0.x">

<artifact id="ejb3-clustered-sfsbcache-service.xml"/>
<artifact id="ejb3-entity-cache-service.xml"/>
<artifact id="ejb3-interceptors-aop.xml"/>
<artifact id="ejb3.deployer" />
<artifact id="hibernate-client.jar"/>
<artifact id="jboss-ejb3-client.jar"/>

<import componentref="javassist">
<compatible version="3.2.0.CR1"/>
<compatible version="3.2.0.CR2"/>
</import>
<import componentref="hibernate-annotations">
<compatible version="3.2.0.GA"/>
</import>
<import componentref="hibernate-entitymanager">
<compatible version="3.2.0.GA"/>
</import>
<import componentref="jboss/remoting">
<compatible version="1.4.1_final"/>
<compatible version="1.4.2.GA"/>
</import>
<import componentref="jboss/aop">
<compatible version="1.5.1.GA"/>
<compatible version="1.5.2.GA"/> <--------------- IS 1.5.2.GA COMPATIBLE?
</import>

<export>
<include input="hibernate-client.jar"/>
<include input="jboss-ejb3-client.jar"/>
</export>

</component>

</project>