Make sure you have the full version, not the trial version.
Open
GetFLV and copy or type the url into browser window. Use the browser in GetFLV, not an external browser.
When you play the video, a link will appear in the lower half of the screen. There will be a Download button to the right of it. Click it when the video is playing and recording should start.
When the video has finished playing, click on FLV Downloader in the left-hand navigation panel. This opens a panel with a list of rows of downloaded or downloading videos. The last one should appear at the bottom of the list. Click the Stop button when the video has finished playing, if it does not stop automatically.
Wait for the video to finish playing before you start clicking anything else!Go to Options->Setting to find your download directory and it should be in that directory as a Flash movie.