You can visit YouTube or Google to find desired videos and copy their URL links. Then you can import the links to UltraGet to start downloading FLV videos.
-For IE users
Double-click the video thumbnail to open it and then copy the link displayed in navigation bar of the browser.
-For Firefox users
Simply right-click on thumbnail of the video and then choose Copy Link Location.
On YouTube, you can only copy the link of those videos with + at left bottom corner directly. Those videos without plus mark need to be open by double-clicking and then copy the URL beside the video not the URL link displayed in navigation bar of your browser.