Developing Java Aplet & Web browser extensions/plugins

I need a Java programmer to developing a Java applet for web application, including developing web browser extensions/plug-ins and to implement Java applet and setup local clients for usage of the application. Also applet can receive some additional parameters. Lets see the workflow: -user visit a page with installer -applet is inactive -the page already has application code(hidden from user, but visible for applet, it is coming from server side) -user selects which appliction to setup -pressing setup user initiates applet -page already has necessary parameters for applet -applet try to make installation -after success or fail applet should make request to our server in format which we should discuss. This request could be useful for us to make a statistic (ie user wanted to setup for OE and MS Outlook, but for OE it was fail, user used XXX operating system and XXX browser etc) -this request is handled by server side As soon as installtion is offline process very important for the plugins: -list of supported browsers in plugin should be somehow remotely refreshable -the actual application code also It means if user download once plugin it has for example support only for Internet Explorer, Firefox. But in month we add support for Safari or chome. User must not download plugin again! Plugin should download this information from our server and update user's local settings. Please carefully look at above before your bid, and all bid must supply with actual experinced example in similar tasks. Suggest don't bid if you think you can do it, but welcome to bid if you had done very similar job and tasks. Thanks