GD Library Error: Imagecreatetruecolor Does Not Exist
Well the simplest way of solving this is to run
sudo apt-get install php5-gd
That will install the necessary libraries that you need to keep continuing. If you are in windows then you need to go to your php.ini and uncomment the following lines
[just remove the ; to uncomment them]
Hope that solves your image issues.
Thanks for the help!