Yesterday I decided to upgrade to 4.5.0.81, everything is working great, but I was told that I would be able to watch videos from youtube, would somebody tell me how to do this as i am having trouble. And what other benefits are there being on this OS.

Are you going to m.youtube.com on your BlackBerry browser?

yes

Are you getting any error messages or anything? Mine works...

I just go to YouTube, search/select a video, then click Watch Video and it plays the video.

The upgraded OS (from 4.2) also has HTML email and a video camera among other things. For those of you on AT&T, I noticed the Telenav program is updated with the upgrade. On the downside - my camera doesn't work anymore but not everyone has that problem...