converting to mpeg or avi would be a good idea. wmv files are not the most trusted format. There is a sticky somewhere at the top of one of the forums about wmv files.
naming the files is something you neeed to work out yourself. You could always offer the same file under different titles and see which one attracts more attention.
As soon as your Limewire is loaded and all the files are hashed, others can see your files. How long they will take to appear in peoples searches depends mostly on luck and your choice of titles. but for best results you must be sharing for several hours ... just putting a share up for an hour is no use atall
Posting a new thread would have been a good idea btw... not adding onto an old one that is totally unrelated
Older music videos ... really I dunno.
I hope this helps a bit