Hello and welcome Llama,
The download page offers you to download either the LiveCD or the InstallCD :http://www.pardus.org.tr/eng/download.html
Judging by what you wrote, I would say that you have downloaded the InstallCD.
Major versions of Pardus Linux are released every year, as their names say : Pardus 2008 in year 2008, Pardus 2009 in year 2009, etc. Minor versions, for example 2008.1 and 2008.2, are in between.
Pardus is not a rolling release distribution per se
, but it can nevertheless be upgraded without the need to redownload and reinstall the new version, either it is a minor or a major one. Is it always a safe process ? I cannot guarantee it. For safety purposes, I advise you not to rush when a new version is available. Waiting a little bit can spare you from possible trouble. If an upgading issue would ever emerge, warnings and workarounds would appear shortly after on the forum and on the wiki.
More details on : http://www.osor.eu/case_studies/a-new-kid-on-the-block-the-turkish-pardus-linux-distribution
PS : there is no silly question : if a question arises, that means there is a need of an answer.