I'm quite sure I'm just making a very stupid mistake, but I just can't figure it out.

I am writing/testing some hibernate entity objects. Running in local JUnit tests, they are fine. When deploying to tcserver they don't return data. They don't error, just no data. I have modified the context.xml file as:

Code:
<Context docBase="C:\Program Files\springsource\vfabric-tc-server-developer-2.6.1.RELEASE\BaseInstance_MSL\wtpwebapps\msl-and-mars-services" 
         path="/msl-and-mars-services" reloadable="true" source="org.eclipse.jst.jee.server:msl-and-mars-services">
  <Loader
        loaderClass="org.springframework.instrument.classloading.tomcat.TomcatInstrumentableClassLoader"
         useSystemClassLoaderAsParent="false" />
</Context>
I have modified the entity manager factory as:
Code:
	<bean id="myEntityManagerFactory"
		class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
		p:dataSource-ref="marsDS">
		<property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
		<property name="persistenceUnitManager" ref="persistenceUnitManager"/>
		<property name="persistenceUnitName" value="myDS"/>
		<property name="loadTimeWeaver">
			<bean class="org.springframework.instrument.classloading.ReflectiveLoadTimeWeaver"/>
		</property>
	</bean>
And I'm trying to modify the -javaagent:/path/to/spring-agent.jar. I can't figure out how to do this, or if it current set and something else is wrong.
First, I tried to set it in the tc Server > Launch configuration > Arguments > VM Arguments. This must not be the right place because when I save and go back to look at the settings they aren't there anymore. I've tried modifying the catalina.bat file in "C:\Program Files\springsource\vfabric-tc-server-developer-2.6.1.RELEASE\tomcat-6.0.33.A.RELEASE\bin", but I don't even know if that file is being used to start the server.

Dumb question, I know, but where do I specify this setting?