Don\'t triple-post, you can simply edit your previous posts to include new information if no one has replied yet.
If you are on Windows, use the Start -> Search feature to find any files with the word \"Planeshift\" in them. Of course I recommend knowing where your downloaded files are saved to, all the time. If you find a .exe Planeshift application, run it. It\'s most likely the installation file. The updater is included in the package and will be accessible after everything is installed (into your Program Files\\PlaneShift Crystal Blue folder).
If you do not find any such file, try another download - but this time remember where the file is saved. All downloads prompt for this, unless you use a nonstandard browser/download manager and fiddled with some settings.