Semi-bricked?

A few months ago, I got an iphone and I went looking for ways to unlock it and jailbreak it so I could use it as a tmobile phone. I found a site that told me that I needed to put it into safe made in order for me to get into the menu because all I could do is dial 911. The site said I had to download their program and install it in order to get it into safe mode. Like the idiot that I am...I did. Now when I plug it in, the PC won't recognize it and asks me to install drivers. The phone resets randomly and when it is on, it only shows the usb/itunes screen. It won't do anything when buttons are pressed. I ordered one of those super-sims chips but it still doesn't do anything.

How do I revert my my back to the way it was?
Please help me :confused: