Converting videos just to watch them on your PC can take time, and money if you require a premium program to do so.
If you want to watch an AVI you I suggest downloading Winamp (
http://www.winamp.com <Click) when installing unselect all format extentions apart from AVI. Every time you open an AVI up (even double clicking a partial download in LW) it'll open it up in Winamp
Seith