Certificate and HTTPS problem

Please see my forum post:
http://forum.java.sun.com/thread.jspa?threadID=702914&tstart=0
Especially at the end of the post....
I used these two sites in getting to the stage that I am at as explained in the forum post in the link above:
http://143.129.203.3/s/sitter/sl2nap/javaSSLprogr.htm
http://www.somacon.com/p41.php

Any ideas anyone, I will gladly provide more information to clarify the problem further if needed. Any help would be most appreciated.
Kind Regards,
Harry

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