Besides to use Nokia Activ Server 2.1, are there any other options for users to download jar for Nokia devices? How can I setup the OTA server on Redhat Linux platform?

Since somebody had installed Nokia Activ Server 2.1 on Solaris OS (http://nkn.forum.nokia.com/devrel/threadshow.cfm?mb=5252074836234332&msg=5257038234815014&page=1), does it mean that it has a version for linux OS? If so, where could I download the trial version?