Site Import

I don't understand this programm. I already spent 99,00 to buy a programm and it doesn't work. why serial Number? I found no place to put it in... I have loaded that programm into dreamweaver extension Manager. No point to start it. I am working with german version of dreamweaver...Does there exist a Site-Import version for Mac and Win? I am using Windows xp. terrible situation....I made the download:
Site Import 3.0.3 (4.09 Mb)Turn your learning into earning and master dynamic Web site development. This download is for the MXP extension file that can be installed using Macromedia Extension Manager.
Nothing happened...
that make realy realy unhappy

The screenshots You show in the pdf are not according to any design, I saw while trying to instal or use Site import.

Is the extension showing up in Extension Manager? If it is, then you should open up Dreamweaver and go to the File->Site Import... and this is where you should access Site Import from. Then the WebAssist Site Tools floater will open. Select Site Import from the drop down menu and hit the GO button. This will pop up the Site Import Wizard and this is where you will have to input the serial number. The easiest way to do this is to copy the serial number using ctrl+c and pasting it into the first text input for the serial number using ctrl+v.