Plugin 1.3.1_02 won't cache my jars

I have an unsigned applet application packaged as 3 jars. I'm using the 1.3.1_02 plugin, IE 5.5, Weblogic 5.1. Below is the html OBJECT tag used to launch my applet.
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
     width="100%" height="100%"
     align="baseline"
     codebase="http://myServer:myPort/j2re-1_3_1_02-win.exe#Version=1,3,1,2">
     <PARAM NAME="MAYSCRIPT" VALUE="true">
     <PARAM NAME="code" VALUE="myApplet.class">
     <PARAM NAME="codebase" VALUE="classes/">
     <PARAM NAME="type" VALUE="application/x-java-applet;jpi-version=1.3.1_02">
     <PARAM NAME="cache_option" VALUE="Plugin">
     <PARAM NAME="cache_archive" VALUE="a.jar,b.jar,c.jar">
</OBJECT>Sticky caching will not work. The jars are downloaded from the server every time the applet is run. The jars would cache correctly when I was using the 1.3.0 plugin.
According to the information here
http://java.sun.com/products/plugin/1.3/docs/appletcaching.html
the jars should be downloaded only if the last modified and jar size have changed.
I realize that I can use the cache_version attibute, but this is an unworkable solution for my case. The html is above is generated dynamically. Also, if I want to tie the jar versions to the application's release versions structure of the attribute (cache_version =X.X.X.X where X could be from 0 to F in hexadecimal) limits me to a finite number of major release version id's.
I am not using HTTPS which will only cache using the cache_version attibute.
Any help would be appreciated.

Hi There,
Did u get reply for yr question,. I've the same problem. Pls let me know if u've any solution for this.
thanks
jasmin

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