The QuickTime Pro 7 serial works for all versions of 7. But check this solution & see if it works for you http://www.gnutellaforums.com/showth...230#post194230

The icon you use is the one called LimeWire. The other is related to startup items I believe AFAIK. So unless you want LW starting up when you boot up, don't worry about it.

I use QT Pro for video all the time, but a minor update is not generally so relevant.

There's a chance QT might not be your problem but we'll wait & see.