You select them from your LW Library window (if theyr'e already dwnlded you can choose the Saved files folder) then select the video file to the right of the folder & press the Launch button. Your default video player will launch to play it. If it can't play it & you'er using windows then you'll need xtra codecs. Try here: http://www.divx-digest.com/software/nimo_pack.html

Else try a player with built in codecs & plays everything except the odd wmv file & is free & called VLC: http://www.videolan.org/vlc/ (choose the nearest mirror site)