If you purchase the plugin, the logo will still be there. This is so your viewers know who developed the plugin. You must purchase logoremover plugin to remove logo. The logoremover plugin leaves a blank white rectangle where the logo was, so you will have to render the video, then stream the rendered vid as still image sequence, import into Photoshop, then perform a "cloning" over the affected area. Bring edited still images back into Vegas and your good to go.