Pedrox, I am sorry to say, but you are greatly misunderstanding the way things work, and all you are doing is, to be quite honest, making an ass of yourself.

That said, the issue you are having is not with the modification, but with the fact that you are unwilling to learn how to use this script. I know this, because you cannot even figure out how to add an HTML block, even when it was right under your nose.

We cannot hold your hand, as we have said to many before you, as you must learn this see more script for yourself and try to be independant from the support of others, or else you will go no where with your web site. Launch another web site, meant just for yourself, and look through every part of the script and try out as many things as you can, so that you can learn what this script can actually do, and realize where problems may lye, in case you encounter one. If you need help with this, then myself (and others, surely) will be more than happy to lend a hand, as we have with others.

Finally, you are coming down on us for not helping you with a third party script, which many of us know absolutely nothing about. You then tried to paint a picture of this entire community based off this incident, which in reality, is far from the truth. If you cannot get ahold of the developer for support, then that is not our issue to care for, as we are not the developer, nor do we have control over them. If you cannot get ahold of them, then you should use your payment provider's buyer protection service and request a return of your money.