I'm just new with using Vegas 4.0 and I'm trying to add text in the video, but I can't make it work, how do I make a text sit ontop of the video so lets say in the lower-right corner a small logo ontop of the video or something..?!
Place the text on track 1 and the video on track 2. Insert a text event using the first template (shows plain white text on a checkerboard-ish background). Type whatever you want and set the size appropriately. Click on the Placement tab and drag the text to wherever you want it to be in the frame.
If you position the cursor inside the text event area of the timeline before you add the text you will be able to see the finished result in the preview window while you type, size, and position the text.
Go to "Insert" in the menu bar and click on it. Then select "Video Track." Too, you might want to take some time and just click around on the workspace to discover what those neat icons are for. That will help reduce the risk of having to ask obvious questions.