To re-size the symbol do following steps:
1. Select the symbol
2. Get inside the symbol time line
3. Click outside of symbol element.
4. In property panel you will get the stage width and height of selected symbol along with other properties.
5. change the width and height to resize the symbol.
I've just tried that not but the problem with doing that is, it resizes it from the top left corner and I will need to resize it and be able to move it.
But thanks for that suggestion.
Thanks for that tutorial, it didn't help with this issue but I understand symbols a little better now
I've decide to solve the issue using a clip instead or resizing it since I only needed to get rid of the top bit.