client cert authentication problem

[B Rook]

I've developed a webservice running in axis on jboss 3.2.6 / tomcat5.
Everything works fine. Our test server uses apache as the webserver.
When I put the application on the test server I get the following
error:

(400)No client certificate chain in this request

I know that the client certificate code works, because it worked when I
was using the tomcat webserver alone. It seem s like apache is doing
something that keeps the client certificate information from being
passed to tomcat.

We are passing requests from apache to tomcat via virtual host proxy
pass
<VirtualHost myserver:443>
ServerNamemyserver
SSLEngine on
SSLCertificateFile conf/ssl.crt/myserver.crt
SSLCertificateKeyFile conf/ssl.key/myserver.key
SetEnvIf User-Agent ".*MSIE.*" nokeepalive ssl-unclean-shutdown
downgrade-1.0 force-response-1.0
ProxyRemote /* http://myserver:8080/
ProxyPass / http://myserver:8080/
ProxyPassReverse / http://myserver:8080/
</VirtualHost>

<VirtualHost dev.childsupport.state.co.us:80>
ServerName dev.childsupport.state.co.us
ProxyRemote /* http://myserver:8080/
ProxyPass / http://myserver:8080/
ProxyPassReverse / http://myserver:8080/
RewriteEngine on
RewriteRule ^/siteuser/(.*) https://myserver/siteuser/$1 [R,L]
</VirtualHost>

We are not using mod_jk (yet) and as far as I know we're not using
mod_ssl. What can I do to correct my problem with client_cert
authentication?

Thanks,