Java Client Publishing Through a Firewall

Hello all, I have been attempting to publish the java web client over ssl through a firewall with no success. The client is installed on a stand alone web server and configured to connect to one farm. This works internally great with ssl and normal http.
I have attempted to set this up on both a linux firewall and a isa2006 firewall both getting the same results in the java console. The error results from the java console below.

Code:

Java Plug-in 1.6.0_10
Verwendung der JRE-Version 1.6.0_10 Java HotSpot(TM) Client VM
Home-Verzeichnis des Benutzers = C:\Dokumente und Einstellungen\no
----------------------------------------------------
c:   Konsole löschen
f:   Objekte in Finalisierungswarteschlange finalisieren
g:   Speicherbereinigung
h:   Diese Hilfemeldung anzeigen
l:   ClassLoader-Liste ausgeben
m:   Speicherbelegung anzeigen
o:   Protokollierung auslösen
q:   Konsole ausblenden
r:   Richtlinien-Konfiguration neu laden
s:   System- und Bereitstellungseigenschaften ausgeben
t:   Threadliste ausgeben
v:   Thread-Stack ausgeben
x:   ClassLoader-Cache löschen
0-5: Trace-Stufe auf <n> setzen
----------------------------------------------------


Laden: Klasse Main nicht gefunden
java.lang.ClassNotFoundException: Main
	at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
	at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
	at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed:https://2x.xxxx.net/Main.class
	at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
	at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
	at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	... 7 more
Ausnahme: java.lang.ClassNotFoundException: Main

What am I missing on the configuration of the firewall rules?
Thanks in advance
Chris