I installed the SDK succesfully now and have made an Android 1.6 AVD. It starts up well. I still have some questions. I also downloaded and installed this program . It has installed a program named 4shared desktop in my Program Files folder. I cannot find a 'system.img' (there's none in the shared desktop folder) to place in my 'Jan.avd' folder. Where can I find it?

OK, I found the IMG in the other link in OneTech's message and placed it in the folder. The program starts up, but I encounter two problems:
1. The emulator finds no internet connection (my computer is connected wireless). When I try to find one 'automatically' the emulator says that my simcard does not allow connection. When I try 'search networks', there's an error message.
2. The emulator keeps asking to open the 'slide' keyboard, but There's no way to do this. There's a keyboard on the right half of the emulator, but clicking there has no effect. The instructions say 'click any text field' to slide the keyboard open, but there's no textfield at all.

I already rebooted my computer, but that doesn't help.