So every now and again I manage to pull off some awesome little stunts in vehicles, but never really save clips, and I've no clue how to upload vids or create links,...could one of you be kind enough to give an old soldier a step by step guide on how to get any vids to you, just incase

If you have Kinect hooked up you just say "Xbox record that" and the last 30 seconds become a clip. If you don't have Kinect you press the guide button and then X and then it should make you a 30 second clip.
http://xboxclips.com/ is where I look at my clips. you just search for your GT in the search bar. On the bottom right it says Download. click it and the clip is now yours.