if you are looking for software to convert your video to work on your bb, check this thread out: http://forums.crackberry.com/f52/vid...+to+blackberry
but, for future reference, you might want to be a little more specific in your titles and posts.. it makes helping you a lot faster and easier.
was it an operating system? if it was, check the top threads in this forum for the link.. make sure it matches your model and you follow all of the directions: http://forums.crackberry.com/f79/