Java app doing SSL to remote HTTPS server

We are working on our first java app running on WAS 6 that needs to talk
to an application (WebCT to be specific) running on a windows server
over HTTPS. We are using the URL class to do this and get a "Certificate
cannot be trusted" error. Documentation we have found talks about using
ikeyman in WAS to load a certificate into a trusted store. We have the
ca.cer and cert.cer files for the certificate that was loaded on the
Windows server. The rest of the documentation has us totally confused.
It says there should be an app in the IFS named ikeyman but we can't
find it anywhere. We are not even sure if we need to load the windows
servers certificate on the iSeries using DCM or ikeyman or if we need to
load the iseries certificate on the windows server. below is the link
where we are getting out information
http://www-128.ibm.com/developerworks/websphere/techjournal/0502_benantar/0502_benantar.html
 
Any help or reference to other documentation would be appreciated...
 
Mike Cunningham
CIO
Pennsylvania College of Technology
www.pct.edu
mcunning@xxxxxxx