UPGRADE ASSISTANT QUESTIONS for ECC6.0???????911

Question

I have used upgrade assistant in the past for 4.6C and 4.7 upgrades and had no problems.  I am having trouble getting the assistant to work through the internet browers.  I need help with a couple of questions:
First:  Do I need do a prepare and SERVER option like I had in the past with R3UP?
Second:  Is there anything special that needs to be done for ports 4239,4240,4241. I can reach my server through the internet of some of the ports that R3 uses.
It seems the java is not recognizing my i5 server and I am not sure where the disconnect is. 
This is the error I am receiving when I try to start the upgrade assistant:
ERROR:  Unable to load resource: http://sapdev:4239/ua/uagui.jnlp
<!--
JNLP File for UaGui
-->
<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="0.2 1.0" codebase="http://SAPDEV.SWIRECC.COM:4239/ua" href="uagui.jnlp">
  <information>
    <title>Upgrade Assistant</title>
    <vendor>SAP AG</vendor>
    <description kind="short">SAP Upgrade Assistant</description>
    <icon href="http://SAPDEV.SWIRECC.COM:4239/ua/pics/sdtgui_big.gif"/>
  </information>
  <security>
    <all-permissions/>
  </security>
  <resources>
    <j2se version="1.4+"/>
    <jar href="uagui.jar" main="true" download="eager"/>
  </resources>
  <application-desc main-class="UaGui">
       <argument>-host</argument>
       <argument>SAPDEV.SWIRECC.COM</argument>
       <argument>-port</argument>
       <argument>4241</argument>
  </application-desc>
</jnlp>

Answer 1

Usually it's done like
- PREPARE
- exchange SAPup with the newest version
- add your application fix <application>_FIX to /usr/sap/put
- $JAVA_HOME/bin/java -cp /usr/sap/put/ua/ua.jar UaServer
- give an administrator password
After that the UA should listen on port 4239
You can verify that on the machine via
netstat -tn | grep -i LISTEN | grep 4239
Also check that you have either no proxy or add the box' name to the exception list of the browser (because Java uses that exception list too).
Markus